[ { "title": "Flow energy harvesting devices and system", "type": "patent", "publication_date": "2022-04-26", "publisher": "U.S. Patent Office", "cite_using_url": "https://authors.library.caltech.edu/records/r88f0-x3225", "abstract": "

A flow energy harvesting system including a nozzle-diffuser defining a spline-shaped flow channel and a flow energy harvesting device in the spline-shaped flow channel of the nozzle-diffuser. The spline-shaped flow channel includes a converging portion, a diverging portion, and a constriction section between the converging and diverging portions. The flow energy harvesting device includes a flextensional member having a frame and a cantilever extending outward from the frame, and a stack of piezoelectric elements housed in an interior cavity defined in the frame. The cantilever is a non-piezoelectric material. The frame of the flextensional member is in the converging portion and the cantilever is in the constriction section of the spline-shaped flow channel. The frame is configured to deform and elongate the piezoelectric elements to generate a current based on the piezoelectric effect when a fluid flows through the spline-shaped flow channel and generates unbalanced forces on the cantilever due.

", "author_list": "Sherrit, Stewart and Lee, Hyeong Jae, el al." }, { "title": "Phenazine degrading agents and related compositions, methods and systems for interfering with viability of bacteria", "type": "patent", "publication_date": "2021-02-04", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20211029-213538184", "abstract": "Provided herein are phenazine degrading agents, methods and systems for interfering with viability of bacteria and related antimicrobial and compositions.", "author_list": "Newman, Dianne K. and Costa, Kyle C." }, { "title": "Tracheotomy device", "type": "patent", "publication_date": "2020-07-16", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20211008-225804351", "abstract": "An aspect of the disclosure is related to a medical device for providing an air passageway through a neck of a patient. In one embodiment, the medical device may include: a neckband configured to extend around the neck of the patient, the neckband including a connector positioned along a length of the neckband for positioning along an anterior part of the neck of the patient, the connector including a connector through hole; a cannula having an elongated tube extending from a connecting head, the elongated tube being configured to extend into a trachea of the patient and including an inner passageway, the connecting head having a through hole that is continuous with the inner passageway of the elongated tube thereby allowing air to pass through the cannula into the trachea, the connecting head having an outer diameter that is sized to have a friction fit with the connector through hole.", "author_list": "Wilson, Byron and Yen, Harrison, el al." }, { "title": "DNA-functionalized scaffolds for drug capture applications", "type": "patent", "publication_date": "2020-05-12", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200608-101206169", "abstract": "This disclosure is directed to structured compositions, including DNA-functionalized scaffolds, for drug capture, and methods and devices for sequestering chemotherapeutics from physiological fluids using the functionalized scaffolds.", "author_list": "Schulz, Michael D. and Blumenfeld, Carl M., el al." }, { "title": "Freeze-cast ceramic membrane for size based filtration", "type": "patent", "publication_date": "2020-04-16", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20210201-150525983", "abstract": "Provided herein are methods for making a freeze-cast material having a internal structure, the methods comprising steps of: determining the internal structure of the material, the internal structure having a plurality of pores, wherein: each of the plurality of pores has directionality; and the step of determining comprises: selecting a temperature gradient and a freezing front velocity to obtain the determined internal structure based on the selected temperature gradient and the selected freezing front velocity; directionally freezing a liquid formulation to form a frozen solid, the step of directionally freezing comprising: controlling the temperature gradient and the freezing front velocity to match the selected temperature gradient and the selected freezing front velocity during directionally freezing; wherein the liquid formulation comprises at least one solvent and at least one dispersed species; and subliming the at least one solvent out of the frozen solid to form the material.", "author_list": "Faber, Katherine T. and Kornfield, Julia A., el al." }, { "title": "Systems and methods for distributed data annotation", "type": "patent", "publication_date": "2018-03-27", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180613-142547321", "abstract": "Systems and methods for distributed data annotation in accordance embodiments of the invention are disclosed. In one embodiment of the invention, a distributed data annotation server system includes a storage device configured to store source data, one or more annotators, annotation tasks and a processor, wherein a distributed data annotation application configures the processor to receive source data including one or more pieces of source data, select one or more annotators, create one or more annotation tasks for the selected annotators and source data, request one or more annotations for the source data using the annotation tasks, receive annotations, determine source data metadata for at least one piece of source data using the received annotations, generate annotator metadata for at least one annotator using the received annotations and the source data, and estimate the ground truth for the source data using the source data metadata and the annotator metadata.", "author_list": "Welinder, Peter and Perona, Pietro" }, { "title": "Systems and methods for the determining annotator performance in the distributed annotation of source data", "type": "patent", "publication_date": "2018-02-20", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180613-144511351", "abstract": "Systems and methods for determining annotator performance in the distributed annotation of source data in accordance embodiments of the invention are disclosed. In one embodiment of the invention, a method for clustering annotators includes obtaining a set of source data, determining a training data set representative of the set of source data, obtaining sets of annotations from a set of annotators for a portion of the training data set, for each annotator determining annotator recall metadata based on the set of annotations provided by the annotator for the training data set and determining annotator precision metadata based on the set of annotations provided by the annotator for the training data set, and grouping the annotators into annotator groups based on the annotator recall metadata and the annotator precision metadata.", "author_list": "Welinder, Peter and Perona, Pietro" }, { "title": "Human immunodeficiency virus neutralizing antibodies and methods of use thereof [APPLICATION]", "type": "patent", "publication_date": "2017-10-25", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20171025-163159394", "abstract": "The invention provides broadly neutralizing antibodies directed to epitopes of Human Immunodeficiency Virus, or HIV. The invention further provides compositions containing HIV antibodies used for prophylaxis, and methods for diagnosis and treatment of HIV infection.", "author_list": "Scheid, Johannes and Nussenzweig, Michel, el al." }, { "title": "System and Method for Locating and Performing Fine Grained Classification from Multi-View Image Data", "type": "patent", "publication_date": "2017-10-05", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180622-124600364", "abstract": "Some embodiments of the invention provide a method for identifying geographic locations and for performing a fine-grained classification of elements detected in images captured from multiple different viewpoints or perspectives. In several embodiments, the method identifies the geographic locations by probabilistically combining predictions from the different viewpoints by warping their outputs to a common geographic coordinate frame. The method of certain embodiments performs the fine-grained classification based on image portions from several images associated with a particular geographic location, where the images are captured from different perspectives and/or zoom levels.", "author_list": "Perona, Pietro and Branson, Steven J., el al." }, { "title": "Systems and methods for labeling source data using confidence labels", "type": "patent", "publication_date": "2017-07-11", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180614-120834409", "abstract": "Systems and methods for the annotation of source data using confidence labels in accordance embodiments of the invention are disclosed. In one embodiment of the invention, a method for determining confidence labels for crowdsourced annotations includes obtaining a set of source data, obtaining a set of training data representative of the set of source data, determining the ground truth for each piece of training data, obtaining a set of training data annotations including a confidence label, measuring annotator accuracy data for at least one piece of training data, and automatically generating a set of confidence labels for the set of unlabeled data based on the measured annotator accuracy data and the set of annotator labels used.", "author_list": "Welinder, Peter and Perona, Pietro" }, { "title": "Adaptive Charging Algorithms for a Network of Electric Vehicles", "type": "patent", "publication_date": "2017-04-20", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170810-134608665", "abstract": "Electric vehicle node controllers in accordance with embodiments of the invention enable adaptive charging. One embodiment includes one or more centralized computing systems; a communications network; a plurality of electric vehicle node controllers, where each electric vehicle node controller in the plurality of node controllers contains: a network interface; a processor; a memory containing: an adaptive charging application; a plurality of electric vehicle node parameters describing charging parameters of an electric vehicle node in the electric vehicle charging network; where the processor is configured by the adaptive charging application to: send electric vehicle node parameters to the one or more centralized computing systems; and charge the electric vehicle node using a charging rate received from the one or more centralized computing systems; where the one or more centralized computing systems is configured to: receive the electric vehicle node parameters from the plurality of electric vehicle node controllers; calculate a plurality of charging rates for the plurality of electric vehicle node controllers using the electric vehicle node parameters, a plurality of adaptive charging parameters, and a cost function; and send the charging rates to the plurality of electric vehicle node controllers.", "author_list": "Low, Zhi H. and Low, Steven H." }, { "title": "Systems and Methods for Behavior Detection Using 3D Tracking and Machine Learning", "type": "patent", "publication_date": "2017-02-16", "publisher": "Caltech Library", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180614-121314343", "abstract": "Systems and methods for performing behavioral detection using three-dimensional tracking \nand machine learning in accordance with various embodiments of the invention are \ndisclosed. One embodiment of the invention involves a the classification application that \ndirects a microprocessor to: identify at least a primary subject interacting with a secondary \nsubject within a sequence of frames of image data including depth information; determine \nposes of the subjects; extract a set of parameters describing the poses and movement of at \nleast the primary and secondary subjects; and detect a social behavior performed by at least \nthe primary subject and involving at least the second subject using a classifier trained to \ndiscriminate between a plurality of social behaviors based upon the set of parameters \ndescribing poses and movement.", "author_list": "Hong, Weizhe and Anderson, David J., el al." }, { "title": "Antibodies directed toward the HIV-1 GP120 CD4 binding site with increased potency and breadth", "type": "patent", "publication_date": "2016-11-15", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20171025-161147200", "abstract": "Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) potent VRC01-like (PVL) antibodies targeted to gp120 having an amino acid substitution in the heavy chain at a residue in the anti-CD4 binding site PVL antibody that is equivalent to Phe43 in CD4 and an amino acid substitution in the light chain, these antibodies having improved potency and breadth.", "author_list": "Diskin, Ron and Bjorkman, Pamela J., el al." }, { "title": "Beam-forming concentrating solar thermal array power systems", "type": "patent", "publication_date": "2016-10-25", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20171006-131410119", "abstract": "The present invention relates to concentrating solar-power systems and, more particularly, beam-forming concentrating solar thermal array power systems. A solar thermal array power system is provided, including a plurality of solar concentrators arranged in pods. Each solar concentrator includes a solar collector, one or more beam-forming elements, and one or more beam-steering elements. The solar collector is dimensioned to collect and divert incoming rays of sunlight. The beam-forming elements intercept the diverted rays of sunlight, and are shaped to concentrate the rays of sunlight into a beam. The steering elements are shaped, dimensioned, positioned, and/or oriented to deflect the beam toward a beam output path. The beams from the concentrators are converted to heat at a receiver, and the heat may be temporarily stored or directly used to generate electricity.", "author_list": "Cwik, Thomas A. and Dimotakis, Paul E., el al." }, { "title": "Controlled transitory or sustained gliding flight with dihedral angle and trailing flaps", "type": "patent", "publication_date": "2016-07-19", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170123-074947443", "abstract": "A micro aerial vehicle capable of controlled transitory or sustained gliding flight. The vehicle includes a fuselage. A pair of articulated wings are forward of a center of gravity of the vehicle, the wings being articulated and having trailing edge flaps, and having actuators for controlling the dihedral angles of the wings and the flaps for effective yaw control across the flight envelope. The dihedral angles can be varied symmetrically on both wings to control the aircraft speed independently of the angle of attack and flight-path angle, while an asymmetric dihedral setting can be used to control yaw and the actuators control the dihedral settings of each wing independently. The aircraft lacks a vertical tail or other vertical stabilizer.", "author_list": "Paranjape, Aditya A. and Chung, Soon-Jo" }, { "title": "Morphing surfaces for the control of boundary layer transition", "type": "patent", "publication_date": "2016-04-19", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20200224-133536093", "abstract": "A structure configured to modify its surface morphology between a smooth state and a rough state in response to an applied stress. In demonstrated examples, a soft (PDMS) substrate is produced, and is pre-strained. A relatively stiff overlayer of a metal, such as chromium and gold, is applied to the substrate. When the pre-strained substrate is allowed to relax, the free surface of the stiff overlayer is forced to become distorted, yielding a free surface having a roughness of less than 1 millimeter. Repeated application and removal of the applied stress has been shown to yield reproducible changes in the morphology of the free surface. An application of such morphing free surface is to control a boundary layer transition of an aerodynamic fluid flowing over the surface.", "author_list": "McKeon, Beverley and Bhattacharya, Kaushik, el al." }, { "title": "Bacterium and enzymes therefrom for bioremediation", "type": "patent", "publication_date": "2016-02-18", "publisher": "World Intellectual Property Organization", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20230314-222728754", "abstract": "The present invention relates to the bioremediation of 2,4-Dinitroanisole. In particular, the present invention relates to a strain of Nocardioides sp., nucleic acids and polypeptides isolated therefrom, which can degrade 2,4-Dinitroanisole. Specifically, Nocardioides sp. strain JS1661 contains a hydrolase enzyme that is capable of converting 2,4- Dinitroanisole to 2,4-dinitrophenol. Accordingly, the present invention provides isolated polypeptides and nucleic acids encoding the enzyme, nucleic acid constructs comprising these, and genetically modified cells expressing the enzyme, or parts thereof. The present invention also provides compositions comprising the aforementioned, including comprising the Nocardioides sp. strain JS1661, and use of the compositions, and the like for bioremediation of 2,4-Dinitroanisole. Methods of detecting 2,4-Dinitroanisole in samples are also provided as well as kits comprising the aforementioned components and for use in the aforementioned methods.", "author_list": "Spain, Jim C. and Karthikeyan, Smruthi, el al." }, { "title": "Dynamic Frequency Control in Power Networks", "type": "patent", "publication_date": "2016-02-04", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170712-205943130", "abstract": "Node controllers in power distribution networks in accordance with embodiments of the invention enable dynamic frequency control. One embodiment includes a node controller comprising a network interface a processor; and a memory containing a frequency control application; and a plurality of node operating parameters describing the operating parameters of a node, where the node is selected from a group consisting of at least one generator node in a power distribution network wherein the processor is configured by the frequency control application to calculate a plurality of updated node operating parameters using a distributed process to determine the updated node operating parameter using the node operating parameters, where the distributed process controls network frequency in the power distribution network; and adjust the node operating parameters.", "author_list": "Zhao, Changhong and Mallada Garcia, Enrique, el al." }, { "title": "Distributed Gradient Descent for Solving Optimal Power Flow in Radial Networks", "type": "patent", "publication_date": "2016-02-04", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170810-114246561", "abstract": "Node controllers and power distribution networks in accordance with embodiments of the invention enable distributed power control, One embodiment includes a node controller comprising a memory containing: a plurality of node operating parameters; and a plurality of node operating parameters describing operating parameters for a set of at least one node selected from the group consisting of at least one downstream node and at least one upstream node; wherein the processor is configured by the node controller application to: receive and store in memory a plurality of coordinator parameters describing operating parameters of a node coordinator by the network interface; and calculate updated node operating parameters using an iterative gradient projection process to determine updated node parameters using node operating parameters that describe operating parameters of node and operating parameters of the set of at least one node, where each iteration is determined by the coordinator parameters.", "author_list": "Gan, Lingwen and Low, Steven H." }, { "title": "Dynamic adjustment of receive window utilized by a transmitting device", "type": "patent", "publication_date": "2016-02-02", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170810-125112138", "abstract": "A method of controlling size of a receive window includes transmitting packets over a communication channel from a transmitting device to a receiver, and receiving acknowledgment packets from the receiver, the received acknowledgement packets from the receiver including an advertised receive window size. The method further includes determining a backlog parameter for the receiver in accordance with the advertised receive window size, determining a queuing delay in accordance the received acknowledgment packets, resetting a size of a congestion window in accordance with a function of a current size of the congestion window and a factor proportional to the queuing delay, and resetting a size of a receive window in accordance with a function of a current size of the receive window and the backlog parameter. A network window is reset in accordance with the smaller of the size of the congestion window and the size of the receive window.", "author_list": "Jin, Cheng and Lee, George S., el al." }, { "title": "Multi-metallic organometallic complexes, and related polymers, compositions, methods and systems", "type": "patent", "publication_date": "2016-01-12", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170425-150527316", "abstract": "Multi-metallic organometallic complexes that allow performance of olefin based reaction and in particular polymerization of olefins to produce polyolefin polymers, and related methods and systems are described.", "author_list": "Radlauer, Madalyn R. and Wiensch, Joshua D., el al." }, { "title": "Systems and Methods for Convex Relaxations and Linear Approximations for Optimal Power Flow in Multiphase Radial Networks", "type": "patent", "publication_date": "2015-12-03", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170810-114535705", "abstract": "Centralized node controllers in accordance with embodiments of the invention enable linear approximation of optimal power flow. One embodiment includes a centralized node controller including: a network interface, a processor, and a memory containing: a centralized power control application a network topology, where the network is multiphase unbalanced and comprises a plurality of connected nodes; wherein the processor is configured by the centralized controller application to: request node operating parameters from the plurality of connected nodes; calculate network operating parameters using a linear approximation of optimal power flow and the node operating parameters from the plurality of connected nodes; send network operating parameters to the plurality of connected nodes.", "author_list": "Gan, Lingwen and Low, Steven H." }, { "title": "Systems and Methods for Optimal Power Flow on a Radial Network", "type": "patent", "publication_date": "2015-11-26", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170810-134608572", "abstract": "Node controllers and power distribution networks in accordance with embodiments of the invention enable distributed power control. One embodiment includes a node controller including a distributed power control application; a plurality of node operating parameters describing the operating parameter of a node and a set of at least one node selected from the group consisting of an ancestor node and at least one child node; wherein send node operating parameters to nodes in the set of at least one node; receive operating parameters from the nodes in the set of at least one node; calculate a plurality of updated node operating parameters using an iterative process to determine the updated node operating parameters using the node operating parameters that describe the operating parameters of the node and the set of at least one node, where the iterative process involves evaluation of a closed form solution; and adjust node operating parameters.", "author_list": "Low, Steven H. and Peng, Qiuyu" }, { "title": "Continuous flow mobility classifier interface with mass spectrometer", "type": "patent", "publication_date": "2015-11-03", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160106-115316902", "abstract": "A continuous flow mobility classifier provide the ability to perform two-dimensional separation in mass spectrometry. An ionization system is used to ionize a sample. A differential mobility analyzer (DMA) (e.g., a nano-radial DMA) is coupled to the ionization system and to a mass spectrometer. The nano-RDMA is configured to separate the ionized sample by mobility for subsequent mass analysis by the mass spectrometer.", "author_list": "Brunelli, Nicholas and Giapis, Konstantinos P., el al." }, { "title": "Click chemistry surface functionalization for resonant micro-cavity sensors", "type": "patent", "publication_date": "2015-08-25", "publisher": "U.S. Patent Office", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150910-091259402", "abstract": "Micro-cavity resonant sensors have outer surfaces that are functionalized using click chemistry, e.g., involving a cycloaddition reaction of an alkyne functional group and an azide functional group. A first polymer linking element binds to an outer surface of the micro-cavity and has an azide functional group, which bonds to an alkyne functional group of a second polymer linking element as a result of a cycloaddition reaction. A functionalization element such as an antibody, antigen or protein for sensing a target molecule is bound to the second linking element.", "author_list": "Armani, Andrea M. and Alabi, Akinleye C., el al." } ]