Patents by Inventor David A. Stewart

David A. Stewart 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).

  • Real-time data distribution system for patient monitoring devices, cardiac defibrillators and associated information delivery systems
    Patent number: 11019158
    Abstract: A data distribution system in comprises software application nodes that utilize a publish-subscribe communication mechanism for distribution of data in real-time or near real-time within a personal area network (PAN), local area network (LAN), or wide-area network (WAN) configuration. The distributed system communication software application nodes reside in medical devices, such as monitoring devices and cardiac defibrillators, and associated patient information delivery systems and patient data management systems comprising medical software installed on servers and end-user computing devices, including mobile devices.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: May 25, 2021
    Assignee: Physio-Control, Inc.
    Inventors: Cheryl Protas, James Wootten, Seshadri Kumar Padmanabha, Ken Peterson, Randy Merry, David Stewart
  • Method of manufacturing an austenitic iron alloy
    Patent number: 11007571
    Abstract: A method of manufacturing an austenitic iron alloy comprising placing austenitic iron alloy powder in a can, evacuating air and other gases from the can, supplying nitrogen gas into the can, sealing the can and then hot isostatically pressing the austenitic iron alloy powder in the can to diffuse the nitrogen into the austenitic iron alloy powder and to produce a nitrogen enriched austenitic iron alloy bar and removing the can from the nitrogen enriched austenitic iron alloy bar.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: May 18, 2021
    Assignee: ROLLS-ROYCE PLC
    Inventor: David A. Stewart
  • GENETIC LOCI ASSOCIATED WITH INCREASED FERTILITY IN MAIZE
    Publication number: 20210108278
    Abstract: The present invention relates to methods and compositions for identifying, selecting and/or producing a maize plant or plant part having increased fertility. A maize plant or plant part that has been identified, selected and/or produced by any of the methods of the present invention is also provided.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 15, 2021
    Applicant: Syngenta Participations AG
    Inventors: Steven William RITCHIE, Satya P. Chintamanani, Molly Dunn, Elhan Sultan Ersoz, David Jay Foster, Nicolas Federico Martin, David Stewart Skibbe, Dominic Michael Tucker
  • BACKLIGHT WINDOW DEFROSTING SYSTEM BASED ON FIELD OF VIEW
    Publication number: 20210092802
    Abstract: An apparatus for heating a window of a vehicle comprises an electrical storage unit configured to store an electrical charge and a plurality of heating circuits disposed on a window of the vehicle. The apparatus further comprises a controller configured to monitor the electrical charge of the electrical storage unit and selectively activate one or more of the heating circuits based on the electrical charge.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 25, 2021
    Applicant: Ford Global Technologies, LLC
    Inventors: Mary Caye Catherine Spieth, Mukesh Kumar, Lawrence C. Karas, David Stewart, Andrew Phillips, Ajay Pal, Yang Yang
  • ASSAY PANELS
    Publication number: 20210072236
    Abstract: Described herein are kits and components thereof used for a multiplexed analysis of a set of cytokines.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 11, 2021
    Inventors: John JOERN, Joseph MANIMALA, Keith McClary, Pankaj OBEROI, Gisbert SPIELES, David STEWART, James WILBUR
  • Improvements In Or Relating To Well Abandonment and Slot Recovery
    Publication number: 20210032948
    Abstract: A downhole casing cutting and removal assembly (10) and method of use thereof, the assembly comprising a work string (23) with a cutting mechanism (18) and plurality of resettable anchor mechanisms (20B-20D). The arrangement allows a test pull to be made following the cut by an anchor mechanism closer to the upper end of the cut casing section than an anchor mechanism (20B-20D) located close to the cutting mechanism. Time is thus saved by not having to raise and lower a single anchor mechanism (20B-20D) between the cutting position and the upper end of the cut casing section to undertake a test pull.
    Type: Application
    Filed: November 29, 2018
    Publication date: February 4, 2021
    Inventors: David Stewart, Lukas David, James Linklater
  • Content relevance weighting system
    Patent number: 10909584
    Abstract: A system for adjusting a relevance weight value for a content item is described. The system comprises a content delivery module configured to deliver a plurality of content items to a device via a network. The content items are displayed on the device. A content storage module is configured to store a relevance weight value and a location in association with each content item. A location detection module is configured to determine a location of the wireless device. A user provides a feedback input for a content item. The relevance weight value associated with the location and the content item is adjusted according to the feedback input provided.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: February 2, 2021
    Assignee: NEXRF CORP.
    Inventors: Michael A. Kerr, David Stewart
  • Genetic loci associated with increased fertility in maize
    Patent number: 10900095
    Abstract: The present invention relates to methods and compositions for identifying, selecting and/or producing a maize plant or plant part having increased fertility. A maize plant or plant part that has been identified, selected and/or produced by any of the methods of the present invention is also provided.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 26, 2021
    Assignee: Syngenta Participations AG
    Inventors: Steven William Ritchie, Satya P. Chintamanani, Molly Dunn, Elhan Sultan Ersoz, David Jay Foster, Nicolas Federico Martin, David Stewart Skibbe, Dominic Michael Tucker
  • DEVICE, SYSTEM, AND METHOD FOR CHANGING ANGLE OF INCIDENCE OF A FILTER OR FILTER WHEEL
    Publication number: 20210011277
    Abstract: This disclosure is directed to a system and method for changing an angle of incidence of a filter or filter wheel.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Inventors: Jeremy Ryan COOPER, David STEWART
  • Automated substrate loading
    Patent number: 10890748
    Abstract: This disclosure is directed to system for transferring a substrate, such as a microscope slide, and holding the substrate within at least one device. The system includes a holder for holding the substrate and a gripper for transferring the substrate, such as between a cassette or stack and the holder. A method is also discussed herein.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: January 12, 2021
    Assignee: RareCyte, Inc.
    Inventors: Steve Quarre, Edward Shafer, David Stewart, Joel Smith
  • Automated substrate loading
    Patent number: 10802260
    Abstract: This disclosure is directed to system for transferring a substrate, such as a microscope slide, and holding the substrate within at least one device. The system includes a holder for holding the substrate and a gripper for transferring the substrate, such as between a cassette or stack and the holder. A method is also discussed herein.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 13, 2020
    Assignee: RareCyte, Inc.
    Inventors: Steve Quarre, Edward Shafer, David Stewart, Joel Smith
  • HOLDING A SUBSTRATE WITHIN A SECONDARY DEVICE
    Publication number: 20200278528
    Abstract: This disclosure relates generally to apparatus and methods for securely holding a substrate. In particular, this disclosure relates to apparatus and methods for securely holding a microscope slide on or within an imaging device.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 3, 2020
    Inventors: David STEWART, Steve QUARRE
  • Sensor logic control of gun camera
    Patent number: 10725370
    Abstract: The present invention relates to the process where a gun video camera is controlled by logic functions using inputs from sensors monitoring the gun and environmental characteristics. More particularly, a control signal is generated which determines the wake-up time of a camera in sleep mode and the recording time of video and data capture of the camera.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: July 28, 2020
    Inventor: David A. Stewart
  • Content Relevance Weighting System
    Patent number: 10721705
    Abstract: A system for adjusting a relevance weight value for a content item is described. The system comprises a content delivery module configured to deliver a plurality of content items to a device via a network. The content items are displayed on the device. A user provides a feedback input that is a positive review or a negative review for a content item. The feedback input is transmitted to a relevance weight adjustment module that subtracts a first point value from the relevance weight value associated with a first set of users when a negative review is received for the content item and adds a first point value to the relevance weight value associated with a first set of users when a positive review is received for the content item.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: July 21, 2020
    Assignee: NEXRF CORP.
    Inventors: Michael A. Kerr, David Stewart
  • FILTER AIDS
    Publication number: 20200222837
    Abstract: The present disclosure includes compositions and methods for filtering a liquid, e.g., water. The compositions herein may include a filter aid comprising a filter medium and packaging having at least one water-soluble portion. When the filter aid is introduced into the liquid to be filtered, the water-soluble portion(s) may dissolve or otherwise degrade in order to expose the filter medium to the liquid.
    Type: Application
    Filed: September 14, 2018
    Publication date: July 16, 2020
    Inventors: Udaya BHIMARAJA, David GITTINS, David STEWART
  • Universal gun rail mount for accessories
    Patent number: 10655929
    Abstract: A gun rail accessory mounting system that is symmetrical in both the Y axis, forward to backwards plane, and in the Z axis, over and under plane is described. Additionally, the two mounting brackets can have similar external dimensions and form factors to allow full 3 axis symmetry. This symmetry allows for an accessory to be mounted on gun rails of the PICATINNY, WEAVER, GLOCK, or any other rail type, where a recoil locking slot is used.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: May 19, 2020
    Inventor: David A. Stewart
  • EXERCISE APPARATUSES AND METHODS OF USING THE SAME
    Publication number: 20200147446
    Abstract: An exercise apparatus includes a pair of step-up apparatuses wearable on feet of a user. Each step-up apparatus is configurable between an expanded configuration and a compressed configuration to simulate a selected motion when the user wearing the pair of step-up apparatuses travels by foot. One of the step-up apparatuses moves towards the expanded configuration while the other step-up apparatus moves towards the compressed configuration.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 14, 2020
    Inventor: Jeffrey David Stewart
  • PEST MONITORING AND NOTIFICATION
    Publication number: 20200146275
    Abstract: A pest detection and notification system includes one or more pest monitors and notification badges or cards. Both the pest monitors and the notification badges are capable of short-range wireless communication. Upon detection of presence of a pest, a pest monitor generates and transmits a wireless pest event message. Any notification badge present within the transmission area of the pest monitor will receive the pest event message. Each notification badge includes one or more pest event indicators, such as an audible indicator, a visible indicator, and/or a vibration motor. Upon receipt of the pest event message, the notification badge activates one or more of the pest event indicators, thus notifying the wearer that a pest presence within the transmission area has been detected.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 14, 2020
    Inventors: Joelle Francine Olson, Ryan J. Drake, Andrew David Stewart, Larry Arvid Lake, Liliana Reategui, Danny Fue Vang, Alexander Roy Nee, Morgan Ann Manderfield
  • WEARABLE EXERCISE APPARATUSES
    Publication number: 20200139190
    Abstract: An exercise apparatus includes a pair of apparatuses wearable on feet of a user. Each apparatus is configurable between expanded configurations and compressed configurations to simulate a selected motion when the user wearing the pair of apparatuses travels by foot. One of the apparatuses can move towards an expanded configuration while the other apparatus moves towards a compressed configuration.
    Type: Application
    Filed: August 6, 2019
    Publication date: May 7, 2020
    Inventor: Jeffrey David Stewart
  • Targeted content delivery
    Patent number: 10560798
    Abstract: A system for delivering targeted content to a wireless handset is described. The system comprises a wireless handset communicatively coupled to a network. A user profile associated with the wireless handset comprises at least one user attribute. The system further comprises a content administration interface configured to store an association between a content item and a user attribute. The system further comprises a content delivery module configured to filter stored content items to retrieve content items associated with a user attribute. The content delivery module transmits at least one retrieved content item to the wireless handset via the network. A handset content interface displays the at least one transmitted content item on the wireless handset.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 11, 2020
    Assignee: NEXRF, CORP.
    Inventors: Michael Anthony Kerr, David Stewart