Patents by Inventor David M. Stevens

David M. Stevens 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).

  • Publication number: 20240146208
    Abstract: The disclosure relates to an electrical power system with current fault protection provided by current limiting diodes. Example embodiments include an electrical power system comprising: an electrical machine; an AC:DC power electronics converter connected to receive an input AC supply from the electrical machine and provide an output DC supply across first and second output terminals; a DC bus connected to first and second output terminals of the AC:DC power electronics converter; a load connected across the DC bus; a first circuit breaker switch and a first current limiting diode connected in series between the AC:DC power electronics converter and the DC bus; and a second circuit breaker switch and a second current limiting diode connected in series between the DC bus and the load, wherein the first current limiting diode is configured to limit current to a higher level than the second current limiting diode.
    Type: Application
    Filed: October 17, 2023
    Publication date: May 2, 2024
    Applicant: ROLLS-ROYCE plc
    Inventors: David R. TRAINER, Mark SWEET, Gian INCERPI, Jonathan M. STEVENS
  • Publication number: 20230190664
    Abstract: Disclosed are crosslinked particles (e.g., microparticles) that are capable of storing and releasing drugs. The particles can be macroparticles, microparticles, or nanoparticles and can be composed of polyester backbones. The particles can be loaded with a drug. The particles can degrade in vivo to release the drug. The particles can be prepared by crosslinking functionalized polyester backbones and loaded with a given drug. The particles of the present disclosure can be injected with a syringe. In some embodiments, the particles of the present disclosure are administered in connection with a surgery and release the drug after the site of the surgery for a period of 1-6 months.
    Type: Application
    Filed: July 22, 2022
    Publication date: June 22, 2023
    Inventors: Frantz LE DEVEDEC, Christine ALLEN, David M. STEVENS, Dean James RAGER-AGUIAR, Timothy Tordella RUCKH, Carl Eric ELMQUIST
  • Patent number: 11591443
    Abstract: Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: February 28, 2023
    Assignee: Vanderbilt University
    Inventors: Eva M. Harth, David M. Stevens
  • Patent number: 11426356
    Abstract: Disclosed are crosslinked particles (e.g., microparticles) that are capable of storing and releasing drugs. The particles can be macroparticles, microparticles, or nanoparticles and can be composed of polyester backbones. The particles can be loaded with a drug. The particles can degrade in vivo to release the drug. The particles can be prepared by crosslinking functionalized polyester backbones and loaded with a given drug. The particles of the present disclosure can be injected with a syringe. In some embodiments, the particles of the present disclosure are administered in connection with a surgery and release the drug after the site of the surgery for a period of 1-6 months.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: August 30, 2022
    Assignees: Pendant Biosciences, Inc., The Governing Council of the University of Toronto
    Inventors: Frantz Le Devedec, Christine Allen, David M. Stevens, Dean James Rager-Aguiar, Timothy Tordella Ruckh, Carl Eric Elmquist
  • Patent number: 11305018
    Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: April 19, 2022
    Assignee: Vanderbilt University
    Inventors: Eva M. Harth, Dain B. Beezer, GuangZhao Li, Benjamin R. Spears, David M. Stevens
  • Publication number: 20220041818
    Abstract: Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: March 17, 2021
    Publication date: February 10, 2022
    Inventors: Eva M. Harth, David M. Stevens
  • Publication number: 20210277275
    Abstract: The present disclosure is directed to polymeric coatings. The coatings can include a substrate-coordinating functionality as well as additional functionality for interacting with the surrounding environment. For example, the coatings can be functionalized for a variety of applications such as imparting antimicrobial properties on a substrate such as an implant; drug delivery; or as an adhesive layer between a substrate and an additional coating.
    Type: Application
    Filed: December 7, 2017
    Publication date: September 9, 2021
    Inventors: David M. STEVENS, Timothy T. RUCKH, Carl Eric ELMQUIST, Lu TIAN
  • Patent number: 10982058
    Abstract: Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 20, 2021
    Assignee: VANDERBILT UNIVERSITY
    Inventors: Eva M. Harth, David M. Stevens
  • Publication number: 20200237918
    Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: February 25, 2020
    Publication date: July 30, 2020
    Inventors: Eva M. Harth, Dain B. Beezer, GuangZhao Li, Benjamin R. Spears, David M. Stevens
  • Patent number: 10610598
    Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: April 7, 2020
    Assignee: Vanderbilt University
    Inventors: Eva M. Harth, Dain B. Beezer, GuangZhao Li, Benjamin R. Spears, David M. Stevens
  • Publication number: 20200017644
    Abstract: Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: May 24, 2019
    Publication date: January 16, 2020
    Inventors: Eva M. Harth, David M. Stevens
  • Publication number: 20190262274
    Abstract: Disclosed are crosslinked particles (e.g., microparticles) that are capable of storing and releasing drugs. The particles can be macroparticles, microparticles, or nanoparticles and can be composed of polyester backbones. The particles can be loaded with a drug. The particles can degrade in vivo to release the drug. The particles can be prepared by crosslinking functionalized polyester backbones and loaded with a given drug. The particles of the present disclosure can be injected with a syringe. In some embodiments, the particles of the present disclosure are administered in connection with a surgery and release the drug after the site of the surgery for a period of 1-6 months.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 29, 2019
    Inventors: Frantz Le Devedec, Christine Allen, David M. Stevens, Dean James Rager-Aguiar, Timothy Tordella Ruckh, Carl Eric Elmquist
  • Patent number: 10308774
    Abstract: Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: June 4, 2019
    Assignee: Vanderbilt University
    Inventors: Eva M. Harth, David M. Stevens
  • Patent number: 10258578
    Abstract: Disclosed are crosslinked particles (e.g., microparticles) that are capable of storing and releasing drugs. The particles can be macroparticles, microparticles, or nanoparticles and can be composed of polyester backbones. The particles can be loaded with a drug. The particles can degrade in vivo to release the drug. The particles can be prepared by crosslinking functionalized polyester backbones and loaded with a given drug. The particles of the present disclosure can be injected with a syringe. In some embodiments, the particles of the present disclosure are administered in connection with a surgery and release the drug after the site of the surgery for a period of 1-6 months.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: April 16, 2019
    Assignee: PENDANT BIOSCIENCES, INC.
    Inventors: Frantz Le Dévédec, Christine Jane Allen, David M. Stevens, Dean James Rager-Aguiar, Timothy Tordella Ruckh, Carl Eric Elmquist
  • Publication number: 20180125983
    Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: July 28, 2017
    Publication date: May 10, 2018
    Inventors: Eva M. Harth, Dain B. Beezer, GuangZhao Li, Benjamin R. Spears, David M. Stevens
  • Patent number: 9757463
    Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: September 12, 2017
    Assignee: Vanderbilt University
    Inventors: Eva M. Harth, Dain B. Beezer, GuangZhao Li, Benjamin R. Spears, David M. Stevens
  • Publication number: 20170193409
    Abstract: A computer implemented method includes receiving indexing data for groupings of business resources, identifying a first grouping of business resources from the groupings of business resources in response to a user query based on the indexing data, and retrieving a first business resource model associated with the first grouping of business resources. The first business resource model defines relationships among the business resources in the first grouping and further defines relationships among the groupings of business resources with respect to the first grouping of business resources. The method also includes generating a second business resource model based on the first business resource model in response to user input, and providing access to a second grouping of business resources associated with the second business resource model.
    Type: Application
    Filed: September 19, 2014
    Publication date: July 6, 2017
    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
    Inventors: David M. STEVENS, Christopher ROGERS, David R. KNIGHT, Sean W. O'BRIEN
  • Publication number: 20170166710
    Abstract: Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: February 27, 2017
    Publication date: June 15, 2017
    Inventors: Eva M. Harth, David M. Stevens
  • Patent number: 9580548
    Abstract: Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The cross-linked polycarbonates can be prepared from allyl or epoxy polycarbonates. Described herein is the formation of functionalized poly(carbonate) particles with an established intermolecular cross-linking process. Six types of ‘nanosponges’ were prepared with the differentiation in crosslinking density and crosslinking chemistry. The intermolecular chain cross-linking process was investigated via the epoxide amine reaction and the thiol-ene click reaction.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: February 28, 2017
    Assignee: Vanderbilt University
    Inventors: Eva M. Harth, David M. Stevens
  • Publication number: 20160206743
    Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: October 20, 2015
    Publication date: July 21, 2016
    Inventors: Eva M. Harth, Dain B. Beezer, GuangZhao Li, Benjamin R. Spears, David M. Stevens