Patents by Inventor Thomas A. Petersen

Thomas A. Petersen 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: 11649389
    Abstract: A collection of compressible particles. The compressible particles are intended to be used for attenuating pressure build-up within a confined volume such as a trapped annulus in a wellbore. Each of the compressible particles is fabricated to collapse in response to fluid pressure within the confined volume, and comprises carbon. Particularly, each of the particles comprises a plurality of peripheral openings, permitting an ingress of wellbore fluids in response to an increase in pressure within a trapped annulus. The collection of compressible particles together has a reversible volumetric expansion/contraction of ?10% and up to 25% at pressures up to 10,000 psi. A method of attenuating annular pressure buildup within a wellbore using the collection of compressible particles is also provided.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: May 16, 2023
    Assignee: ExxonMobil Technology and Engineering Company
    Inventors: Peter A. Gordon, Thomas A. Petersen, Spencer A. White, Elizabeth L. Templeton-Barrett, Christian Mayer
  • Publication number: 20230079079
    Abstract: Systems and methods are provided for evaluating a tissue that utilize a resistance to represent pressure of a fluid or gas passing through the tissue and a capacitance to represent compliance of the tissue.
    Type: Application
    Filed: September 13, 2022
    Publication date: March 16, 2023
    Applicant: United Therapeutics Corporation
    Inventors: Thomas Petersen, Jeffrey Soohoo, Blair Dodson, Joseph Papu, Joanna Peterschmitt
  • Publication number: 20220122566
    Abstract: Methods, systems and apparatuses may provide for technology that determines measured timing data in response to a presentation request from an application, wherein the measured timing data is associated with one or more previous frames and the presentation request is associated with one or more subsequent frames. The technology may also determine scheduling times for the subsequent frame(s) based on the measured timing data, wherein the scheduling times include a simulation time, a rendering time, a driver submission time, a hardware submission time, and a display time. In one example, the technology controls a pacing of the subsequent frame(s) on a display in accordance with the scheduling times.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 21, 2022
    Inventors: Travis Schluessler, Thomas Petersen, Charles Moidel, Gary Smith, Zhe Wang, Rafal Rudnicki
  • Publication number: 20220062210
    Abstract: Provided are methods for treating or preventing vasculopathy in a subject in need thereof, comprising administering to the subject a prostacyclin and a mesenchymal stem cell (MSC) or a MSC-conditioned culture medium or administering to the subject a MSC or a MSC-conditioned culture medium that has treated with prostacyclin. Pharmaceutical compositions suitable for such treatments are also provided.
    Type: Application
    Filed: September 8, 2021
    Publication date: March 3, 2022
    Applicant: United Therapeutics Corporation
    Inventors: Roger Jeffs, Thomas Petersen, Roger M. Ilagan, Michael Wade
  • Publication number: 20220069753
    Abstract: A method adjusts values of a plurality of parameters of at least one controller of an electric drive system. The method provides an individual replacement parameter value that can be adjusted by a user. After adjusting the replacement parameter value, the method calculates the values of the plurality of parameters from the adjusted replacement parameter value.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 3, 2022
    Inventors: Johannes KUEHN, Lars PERNER, Thomas PETERSEN
  • Patent number: 11141393
    Abstract: Provided are methods for treating or preventing vasculopathy in a subject in need thereof, comprising administering to the subject a prostacyclin and a mesenchymal stem cell (MSC) or a MSC-conditioned culture medium or administering to the subject a MSC or a MSC-conditioned culture medium that has treated with prostacyclin. Pharmaceutical compositions suitable for such treatments are also provided.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 12, 2021
    Assignee: United Therapeutics Corporation
    Inventors: Roger Jeffs, Thomas Petersen, Roger M. Ilagan, Michael Wade
  • Publication number: 20210310335
    Abstract: A method of attenuating annular pressure buildup within a wellbore. The method includes accessing a wellbore, with the wellbore having an annulus disposed between first and second strings of casing. The method also includes placing a column of cement around the second string of casing generally below the first string of casing. The method further includes pumping a fluid mixture into the annulus, forming a fluid column. The fluid mixture comprises a carrier fluid, and a plurality of compressible particles dispersed in the carrier fluid. Each of the compressible particles is fabricated to partially collapse in response to thermal expansion of the fluid mixture. The method also includes placing a wellhead over the wellbore, thereby forming a trapped annulus in the wellbore. The method additionally includes at least partially sealing the annular region along at least one depth above the column of cement to inhibit vertical migration of the compressible particles.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 7, 2021
    Inventors: Spencer A. White, Thomas A. Petersen, Elizabeth L. Templeton-Barrett, Sabine C. Zeilinger, Catalin D. Ivan, Peter A. Gordon, Christian S. Mayer
  • Publication number: 20210309906
    Abstract: A collection of compressible particles. The compressible particles are intended to be used for attenuating pressure build-up within a confined volume such as a trapped annulus in a wellbore. Each of the compressible particles is fabricated to collapse in response to fluid pressure within the confined volume, and comprises carbon. Particularly, each of the particles comprises a plurality of peripheral openings, permitting an ingress of wellbore fluids in response to an increase in pressure within a trapped annulus. The collection of compressible particles together has a reversible volumetric expansion/contraction of ?10% and up to 25% at pressures up to 10,000 psi. A method of attenuating annular pressure buildup within a wellbore using the collection of compressible particles is also provided.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 7, 2021
    Inventors: Peter A. Gordon, Thomas A. Petersen, Spencer A. White, Elizabeth J. Templeton-Barrett, Christian Mayer
  • Patent number: 10957078
    Abstract: A raster unit is configured to generate different sample patterns for adjacent pixels within a given frame. In addition, the raster unit may adjust the sample patterns between frames. The raster unit includes an index unit that selects a sample pattern table for use with a current frame. For a given pixel, the index unit extracts a sample pattern from the selected sample pattern table. The extracted sample pattern is used to generate coverage information for the pixel. The coverage information for all pixels is then used to generate an image. The resultant image may then be filtered to reduce or remove artifacts induced by the changing of sample locations.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: March 23, 2021
    Assignee: NVIDIA Corporation
    Inventors: Yury Y. Uralsky, Jonah M. Alben, Ankan Banerjee, Gregory Massal, Thomas Petersen, Oleg Kuznetsov, Eric B. Lum, Prakshep Mehta
  • Publication number: 20210030812
    Abstract: The current application is directed to a method for treating pulmonary arterial hypertension (PAH), comprising: providing isolated endothelial progenitor cells (EPCs); treating the EPCs with prostacyclin, wherein the treated EPCs exhibit a hyperproliferative phenotype with enhanced angiogenic property; and administering a composition comprising the treated EPCs into a subject suffering from PAH.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 4, 2021
    Applicant: United Therapeutics Corporation
    Inventors: Roger Jeffs, Thomas Petersen, Roger M. Ilagan, Michael Wade
  • Patent number: 10910956
    Abstract: A method is provided for operating a frequency converter, which is designed to drive a three-phase motor, wherein the frequency converter has three half-bridges each having at least two switches. The method includes the following steps: generating three phase voltages for the three-phase motor by a pulse width modulation, wherein, for the pulse width modulation, various switching patterns of the switches are activated, wherein specific star point voltages ensue for various groups of switching patterns; and in at least one operating state of the frequency converter, within a respective period of the pulse width modulation, activating only those switching patterns in which an identical star point voltage ensues.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 2, 2021
    Assignee: Lenze Automation GmbH
    Inventors: Fritz Witte, Thomas Petersen, Dirk Duesterberg
  • Publication number: 20210008106
    Abstract: Methods and compositions relating to isolated mitochondria are disclosed. For example, cells, tissues, or organs can be treated with isolated mitochondria, such as porcine mitochondria, to improve mitochondrial function in the cell, tissue, or organ. The improvements to mitochondrial function include increased oxygen consumption and increased ATP synthesis. Such methods and compositions are useful for cell therapy; organ and tissue transplantation; organ and tissue engineering; and cold storage or shipment of harvested organs, tissues, and cells.
    Type: Application
    Filed: June 17, 2020
    Publication date: January 14, 2021
    Applicant: United Therapeutics Corporation
    Inventors: Thomas Petersen, Sarah Hogan, Roger Ilagan, Caryn Cloer
  • Patent number: 10842823
    Abstract: The current application is directed to a method for treating pulmonary arterial hypertension (PAH), comprising: providing isolated endothelial progenitor cells (EPCs); treating the EPCs with prostacyclin, wherein the treated EPCs exhibit a hyperproliferative phenotype with enhanced angiogenic property; and administering a composition comprising the treated EPCs into a subject suffering from PAH.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: November 24, 2020
    Assignee: United Therapeutics Corporation
    Inventors: Roger Jeffs, Thomas Petersen, Roger M. Ilagan, Michael Wade
  • Publication number: 20200352157
    Abstract: An automated bioreactor system for decellularizing an organ includes a main chamber for containing the organ. The system further includes a reagent chamber containing a liquid phase reagent. A reagent conduit delivers the liquid phase reagent to the main chamber, and a perfusion conduit delivers the reagent from the reagent outlet in the main chamber into the organ. A perfusion pump drives the flow of the reagent. A perfusion pressure sensor detects a pressure of the flowing reagent. A control system controls the perfusion pump to drive the flow of the reagent based on a received input representative of a desired pressure and a received input of the detected pressure. The control system may automatically perform all of the steps of a decellularization protocol based on sensor input. An automated waste decontamination system may also be provided.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Applicant: United Therapeutics Corporation
    Inventors: Ryan Bonvillain, John Cheadle, Thomas Petersen
  • Patent number: 10381782
    Abstract: An electrical connector including first and second connector parts configured for mating together, and with one of the connector parts having a sensory feedback member that moves between an extended position and a retracted position as a result of magnetic interaction with an actuation element in the other connector part during mating of the connector parts. The movement of the sensory feedback member causes a sensory feedback indication, such as an audible sound or a tactile vibration.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: August 13, 2019
    Inventors: Norman R. Byrne, Daniel P. Byrne, Timothy J. Warwick, Thomas A. Petersen, Randell E. Pate, Marc A. Mitchell
  • Publication number: 20190201453
    Abstract: The present invention relates to compositions comprising a decellularized tissue. The present invention also provides an engineered three dimensional lung tissue exhibiting characteristics of a natural lung tissue. The engineered tissue is useful for the study of lung developmental biology and pathology as well as drug discovery.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Elizabeth CALLE, Laura E. NIKLASON, Thomas PETERSEN, Liqiong GUI
  • Publication number: 20190160032
    Abstract: Provided are methods for treating or preventing vasculopathy in a subject in need thereof, comprising administering to the subject a prostacyclin and a mesenchymal stem cell (MSC) or a MSC-conditioned culture medium or administering to the subject a MSC or a MSC-conditioned culture medium that has treated with prostacyclin. Pharmaceutical compositions suitable for such treatments are also provided.
    Type: Application
    Filed: September 21, 2018
    Publication date: May 30, 2019
    Applicant: United Therapeutics Corporation
    Inventors: Roger Jeffs, Thomas Petersen, Roger M. Ilagan, Michael Wade
  • Publication number: 20190139269
    Abstract: A raster unit is configured to generate different sample patterns for adjacent pixels within a given frame. In addition, the raster unit may adjust the sample patterns between frames. The raster unit includes an index unit that selects a sample pattern table for use with a current frame. For a given pixel, the index unit extracts a sample pattern from the selected sample pattern table. The extracted sample pattern is used to generate coverage information for the pixel. The coverage information for all pixels is then used to generate an image. The resultant image may then be filtered to reduce or remove artifacts induced by the changing of sample locations.
    Type: Application
    Filed: December 4, 2018
    Publication date: May 9, 2019
    Inventors: Yury Y. URALSKY, Jonah M. ALBEN, Ankan BANERJEE, Gregory MASSAL, Thomas PETERSEN, Oleg KUZNETSOV, Eric B. LUM, Prakshep MEHTA
  • Patent number: 10188683
    Abstract: The present invention relates to compositions comprising a decellularized tissue. The present invention also provides an engineered three dimensional lung tissue exhibiting characteristics of a natural lung tissue. The engineered tissue is useful for the study of lung developmental biology and pathology as well as drug discovery.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: January 29, 2019
    Assignee: Yale University
    Inventors: Elizabeth Calle, Laura E. Niklason, Thomas Petersen, Liqiong Gui
  • Patent number: D857633
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: August 27, 2019
    Inventors: Norman R. Byrne, Thomas A. Petersen