Patents by Inventor Peter Chen

Peter Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12291661
    Abstract: A quantum dot structure is provided, the quantum dot structure comprising: a nanocrystalline core from a first semiconductor material, a nanocrystalline shell from a second semiconductor material on the nanocrystalline core, at least one encapsulation layer on the nanocrystalline shell, wherein functional groups are present within the at least one encapsulation layer and/or on the surface of the at least one encapsulation layer facing away from the nanocrystalline shell, the functional groups being able to chemically react in a reversible manner. Further, a method for producing a quantum dot structure and a light emitting device are provided.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: May 6, 2025
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Peter Chen, Brian Theobald, Joseph Treadway
  • Publication number: 20250028646
    Abstract: A method for data storage includes receiving, by a storage device, a read request for data, the read request being associated with a request size, determining that a first cache area associated with a first portion of the data is in a first portion of a cache, the first cache area having a first size that is smaller than the request size, determining that a second cache area associated with a second portion of the data is in a second portion of the cache, the second cache area having a second size that is smaller than the request size and differently sized than the first size, and based on the read request, reading the first portion of the data from the first cache area and reading the second portion of the data from the second cache area.
    Type: Application
    Filed: November 30, 2023
    Publication date: January 23, 2025
    Inventors: Qirui Yang, Bridget Davis, Devasena Inupakutika, Peter Chen, Bradley Carpenter
  • Publication number: 20240281274
    Abstract: Systems and methods for managing a storage device are disclosed. A first amount of a first storage device is associated to a first client. A first request associated with first data is detected, and a second request associated with the first data is also detected. A log for the first request and the second request is maintained for the first client. A trigger condition is identified, and based on identifying the trigger condition, a value is computed based on the log. A second amount of the first storage device is determined based on the value, and the second amount is associated to the first client.
    Type: Application
    Filed: May 26, 2023
    Publication date: August 22, 2024
    Inventors: Qirui Yang, Bridget Davis, Devasena Inupakutika, Peter Chen, Thomas Rainey, Terence Wong
  • Publication number: 20240181192
    Abstract: The present invention provides an improved percutaneous dilation tracheostomy device. The device is configured to include all of the required components to perform a percutaneous tracheotomy. The device includes a retractable needle and an extendable j-wire rather than having separate components as in typical percutaneous tracheostomy devices. The device includes a dilator section to expand the diameter of a patient's stoma. The device is further configured to allow an operator to perform a bubble test to alert the user that the tube is in the trachea. In addition, the device is generally more compact than typical emergency tracheostomy devices.
    Type: Application
    Filed: February 12, 2024
    Publication date: June 6, 2024
    Inventors: Joseph Rabin, Conor Bloomer, Paige Chan, Scott Kivitz, Peter Chen, Torrance Wang
  • Patent number: 11896763
    Abstract: The present invention provides an improved percutaneous dilation tracheostomy device. The device is configured to include all of the required components to perform a percutaneous tracheotomy. The device includes a retractable needle and an extendable j-wire rather than having separate components as in typical percutaneous tracheostomy devices. The device includes a dilator section to expand the diameter of a patient's stoma. The device is further configured to allow an operator to perform a bubble test to alert the user that the tube is in the trachea. In addition, the device is generally more compact than typical emergency tracheostomy devices.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: February 13, 2024
    Assignees: University of Maryland, Baltimore, University of Maryland, College Park
    Inventors: Joseph Rabin, Conor Bloomer, Paige Chan, Scott Kivitz, Peter Chen, Torrance Wang
  • Patent number: 11795384
    Abstract: A nanoparticle is specified. The nanoparticle comprises a nanocrystal configured to convert electromagnetic radiation of a first wavelength range into electromagnetic radiation of a second wavelength range, a first encapsulation comprising pores which reach into or through the first encapsulation, and a second encapsulation which is different from the first encapsulation, wherein the second encapsulation abuts at least one of the pores. Furthermore, a structure comprising a plurality of nanoparticles and a method for producing nanoparticle is specified.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: October 24, 2023
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Erik Johansson, Robert Fitzmorris, Peter Chen
  • Publication number: 20230310075
    Abstract: A catheter configured to deliver therapeutic energy to a tissue is disclosed. The catheter comprises an elongate shaft extending along a shaft longitudinal axis. The catheter further comprises a flexible tip assembly coupled to a distal end of the elongate shaft, the flexible tip assembly comprising at least three mapping electrodes equally spaced about a circumference of the flexible tip, a flexible ablation electrode, and a plurality of irrigation ports. The catheter further comprises an irrigation lumen extending through the elongate shaft and into an interior of the flexible tip assembly, wherein the irrigation lumen is configured to direct irrigation fluid to the plurality of irrigation ports.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Inventors: Alan de la Rama, Peter Chen, Cary K. Hata
  • Publication number: 20230248932
    Abstract: The present invention provides an improved percutaneous dilation tracheostomy device. The device is configured to include all of the required components to perform a percutaneous tracheotomy. The device includes a retractable needle and an extendable j-wire rather than having separate components as in typical percutaneous tracheostomy devices. The device includes a dilator section to expand the diameter of a patient's stoma. The device is further configured to allow an operator to perform a bubble test to alert the user that the tube is in the trachea. In addition, the device is generally more compact than typical emergency tracheostomy devices.
    Type: Application
    Filed: November 15, 2022
    Publication date: August 10, 2023
    Inventors: Joseph Rabin, Conor Bloomer, Paige Chan, Scott Kivitz, Peter Chen, Torrance Wang
  • Patent number: 11707319
    Abstract: A catheter configured to deliver therapeutic energy to a tissue can include can include an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal end and a shaft distal end. The catheter can include a flexible tip assembly comprising a tip assembly outer surface, wherein the flexible tip assembly is connected to the shaft distal end and is configured to deliver therapeutic energy to the tissue, and wherein the flexible tip assembly further includes. The flexible tip assembly can include an insulative layer comprising an insulative layer outer surface, wherein the insulative layer is disposed on the tip assembly outer surface and a mapping electrode disposed on the insulative layer outer surface.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: July 25, 2023
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Alan de la Rama, Peter Chen, Cary K. Hata
  • Publication number: 20230193121
    Abstract: A quantum dot structure is provided, the quantum dot structure comprising: a nanocrystalline core from a first semiconductor material, a nanocrystalline shell from a second semiconductor material on the nanocrystalline core, at least one encapsulation layer on the nanocrystalline shell, wherein functional groups are present within the at least one encapsulation layer and/or on the surface of the at least one encapsulation layer facing away from the nanocrystalline shell, the functional groups being able to chemically react in a reversible manner. Further, a method for producing a quantum dot structure and a light emitting device are provided.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 22, 2023
    Inventors: Peter Chen, Brian Theobald, Joseph Treadway
  • Publication number: 20230174850
    Abstract: A nanoparticle is specified. The nanoparticle comprises a nanocrystal configured to convert electromagnetic radiation of a first wavelength range into electromagnetic radiation of a second wavelength range, a first encapsulation comprising pores which reach into or through the first encapsulation, and a second encapsulation which is different from the first encapsulation, wherein the second encapsulation abuts at least one of the pores. Furthermore, a structure comprising a plurality of nanoparticles and a method for producing nanoparticle is specified.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 8, 2023
    Inventors: Erik JOHANSSON, Robert FITZMORRIS, Peter CHEN
  • Patent number: 11596470
    Abstract: A fluid delivery catheter configured to allow optimal fluid distribution through each electrode by varying the diameter of a catheter lumen is disclosed. Uniform or different fluid flow rates through longitudinally spaced apart elution holes may be achieved. Exemplary fluids for use with the catheter include a cooling fluid, a therapeutic fluid, and a medication.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: March 7, 2023
    Assignee: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.
    Inventors: Carlo Pappone, Alan de la Rama, Peter Chen, Cary Hata
  • Patent number: 11497872
    Abstract: The present invention provides an improved percutaneous dilation tracheostomy device. The device is configured to include all of the required components to perform a percutaneous tracheotomy. The device includes a retractable needle and an extendable j-wire rather than having separate components as in typical percutaneous tracheostomy devices. The device includes a dilator section to expand the diameter of a patient's stoma. The device is further configured to allow an operator to perform a bubble test to alert the user that the tube is in the trachea. In addition, the device is generally more compact than typical emergency tracheostomy devices.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: November 15, 2022
    Assignees: University of Maryland, Baltimore, University of Maryland, College Park
    Inventors: Joseph Rabin, Conor Bloomer, Paige Chan, Scott Kivitz, Peter Chen, Torrance Wang
  • Publication number: 20220354568
    Abstract: A catheter is disclosed comprising a catheter shaft including a proximal end and a distal end. A flexible framework can be connected to the distal end of the catheter shaft, wherein the flexible framework includes a plurality of heating electrodes and a temperature sensor. The plurality of heating electrodes can be configured to be heated to a first temperature, the first temperature being lower than which radio frequency ablation is performed. The plurality of heating electrodes can be configured to be heated to a second temperature, the second temperature being a temperature at which radio frequency ablation is performed.
    Type: Application
    Filed: May 6, 2022
    Publication date: November 10, 2022
    Inventors: Carlo Pappone, Alan de la Rama, Gabriele Giuseppe Vicedomini, Cary Hata, Tho Hoang Nguyen, Peter Chen
  • Patent number: 11410371
    Abstract: A platform for visualization of traffic information at an observed roadway or traffic intersection converts data collected from sensors for rendering as dynamic animations on a virtual map of the observed roadway or traffic intersection. The platform parses and curates incoming sensor data from either a single or multiple sensors representing one or more objects at the observed roadway or traffic intersection, and translates at least location data of each object for correlation of the object's movement relative to the observed roadway or traffic intersection. The platform then generates dynamic animations of the movement of each object and displays the animations as an overlay on the virtual map.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: August 9, 2022
    Assignee: ITERIS, INC.
    Inventors: Todd W. Kreter, Michael T. Whiting, Peter Chen
  • Patent number: 11350987
    Abstract: A catheter is disclosed comprising a catheter shaft including a proximal end and a distal end. A flexible framework can be connected to the distal end of the catheter shaft, wherein the flexible framework includes a plurality of heating electrodes and a temperature sensor. The plurality of heating electrodes can be configured to be heated to a first temperature, the first temperature being lower than which radio frequency ablation is performed. The plurality of heating electrodes can be configured to be heated to a second temperature, the second temperature being a temperature at which radio frequency ablation is performed.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 7, 2022
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Carlo Pappone, Alan de la Rama, Gabriele Giuseppe Vicedomini, Cary Hata, Tho Hoang Nguyen, Peter Chen
  • Publication number: 20220138078
    Abstract: Techniques and mechanisms are disclosed that enable a data intake and query system to generate and cause display of circular timelines of timestamped event data. As used herein, a circular timeline generally refers to a graphical display of timestamped events stored by a data intake and query system, wherein the timestamped events may be displayed as arcs of one or more concentric circles and located in a circular timeline area according to a chronological ordering associated with the events. One or more display attributes of each arc may further depend on other data associated with the corresponding events. For example, each arc of a circular time may be displayed at a particular radial distance, with a particular thickness, using a particular shading and/or color, etc., depending on various data values associated with the one or more events represented by the arc.
    Type: Application
    Filed: October 7, 2021
    Publication date: May 5, 2022
    Inventors: Peter Chen, Min Zhang, Feng Shao, Qianjie Zhong, Geng Qin, D. Randall Young, Roy Zhang, Aaron Zhang
  • Patent number: 11246655
    Abstract: A catheter configured to deliver therapeutic energy to a tissue can include can include an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal end and a shaft distal end. The catheter can include a flexible tip assembly comprising a tip assembly outer surface, wherein the flexible tip assembly is connected to the shaft distal end and is configured to deliver therapeutic energy to the tissue, and wherein the flexible tip assembly further includes. The flexible tip assembly can include an insulative layer comprising an insulative layer outer surface, wherein the insulative layer is disposed on the tip assembly outer surface and a mapping electrode disposed on the insulative layer outer surface.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: February 15, 2022
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Alan de la Rama, Peter Chen, Cary Hata
  • Publication number: 20210401092
    Abstract: A medical gown constructed by heat sealing a tubular plastic structure made by a blown film process. The medical gown having a front panel and a rear panel, two sleeves for covering the arms of a wearer, with the distal end of each sleeve including an opening for enabling the wearer to penetrate their hand therethrough. Each sleeve of the medical gown having an upper seal portion and a lower seal portion, a neck opening between the two upper seal portions of the two sleeves, a gap for accommodating the body of the wearer between the two lower sealed portions of the two sleeves. A perforated section below each sleeve is provided for severing each of the sleeves from the gown material for ease of donning and wearing.
    Type: Application
    Filed: June 24, 2021
    Publication date: December 30, 2021
    Inventors: Harry Wilfong, Peter Chen, Gary Littlejohn, Kevin McCormick, Jim Kelley
  • Patent number: D1055368
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: December 24, 2024
    Inventor: Peter Chen