Patents by Inventor David W. Jennings

David W. Jennings 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: 11667860
    Abstract: A stabilized paraffin inhibitor/pour point depressant (PI/PPD) product formulation is described which includes a copolymer having a monomer selected from the group consisting of alkyl acrylate polymers, alkyl methacrylate polymers, and combinations thereof, where the copolymer comprises vinyl acetate and the product includes an ethylene-based copolymer. The presence of the vinyl acetate stabilizes the product to prevent or inhibit the ethylene-based copolymer from separating out of the product. The product is useful to reduce paraffin deposition and/or improve flow characteristics of petroleum fluids, such as crude oil.
    Type: Grant
    Filed: June 20, 2021
    Date of Patent: June 6, 2023
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Kui Xu, Wojciech Jakubowski, David W. Jennings, Rebecca Vilain
  • Publication number: 20220403271
    Abstract: A stabilized paraffin inhibitor/pour point depressant (PI/PPD) product formulation is described which includes a copolymer having a monomer selected from the group consisting of alkyl acrylate polymers, alkyl methacrylate polymers, and combinations thereof, where the copolymer comprises vinyl acetate and the product includes an ethylene-based copolymer. The presence of the vinyl acetate stabilizes the product to prevent or inhibit the ethylene-based copolymer from separating out of the product. The product is useful to reduce paraffin deposition and/or improve flow characteristics of petroleum fluids, such as crude oil.
    Type: Application
    Filed: June 20, 2021
    Publication date: December 22, 2022
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Kui Xu, Wojciech Jakubowski, David W. Jennings, Rebecca Vilain
  • Publication number: 20210355387
    Abstract: A method of stabilizing asphaltenes in a petroleum hydrocarbon fluid is disclosed. The method includes contacting the petroleum hydrocarbon fluid with a polybenzoxazine comprising repeating structural units of Formula (I): wherein R1 is hydrogen, a C1-30 alkyl, a C3-30 cycloalkyl, a C6-30 aryl, a C7-30 alkylarylene, a C7-30 arylalkyl, a C5-30 heteroaryl, or a C3-30 heterocycloalkyl; and R2 is a C1-30 alkyl, a C3-30 cycloalkyl, a C6-30 aryl, a C7-30 alkylarylene, a C7-30 arylalkyl, a C5-30 heteroaryl, or a C3-30 heterocycloalkyl.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 18, 2021
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Joey Dacula Mangadlao, Gordon Rivers, David W. Jennings, Jerry Weers
  • Patent number: 11162036
    Abstract: A method of stabilizing asphaltenes in a petroleum hydrocarbon fluid is disclosed. The method includes contacting the petroleum hydrocarbon fluid with a polybenzoxazine comprising repeating structural units of Formula (I): wherein R1 is hydrogen, a C1-30 alkyl, a C3-30 cycloalkyl, a C6-30 aryl, a C7-30 alkylarylene, a C7-30 arylalkyl, a C5-30 heteroaryl, or a C3-30 heterocycloalkyl; and R2 is a C1-30 alkyl, a C3-30 cycloalkyl, a C6-30 aryl, a C7-30 alkylarylene, a C7-30 arylalkyl, a C5-30 heteroaryl, or a C3-30 heterocycloalkyl.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: November 2, 2021
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Joey Dacula Mangadlao, Gordon Rivers, David W. Jennings, Jerry Weers
  • Patent number: 9348446
    Abstract: An apparatus and system for a vehicular touchscreen system. The apparatus includes a bezel configured to surround a touchscreen of a vehicular touchscreen device. The bezel includes an outwardly extending bezel portion. The outwardly extending bezel portion extends outwardly in a direction at least partially having a component direction perpendicular to a surface of the touchscreen.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: May 24, 2016
    Assignee: Rockwell Collins, Inc.
    Inventors: Sarah Barber, David W. Jennings, Terry L. Olson, David A. Gribble, David L. Leedom, Daniel S. Skultety
  • Patent number: 8691731
    Abstract: Generating heat within a combination solvent/acid system removes undesirable deposits from petroleum reservoir formations (especially the near well-bore region), oilfield equipment, and petroleum processing equipment. An exothermic reaction occurs between the solvent and the acid and the heat evolved helps remove organic solid deposits. The acids may include organic acid compounds, such as sulfonic acids, sulfuric acid and nitric acid. The solvents may include terpene- and terpene-derivative-containing solvents, including, but not necessarily limited to, limonene, pinene, dipentene, myrcene, turpentines and compounds having at least one double bond, such as methyl furan, dienes, styrene, vinyl acetate and the like. The exothermic reaction produces a great amount of heat, and together with using certain acids and solvents already known as effective to remove paraffin and asphaltene deposition, removing such deposits is improved.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: April 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: David W. Jennings, Samuel Asomaning, Michael E. Newberry
  • Patent number: 8055395
    Abstract: A system for providing crosswind component information to a pilot of an aircraft is disclosed. The system is comprised of a navigation system; datalink system; devices for manual input of data; a crosswind component module consisting of, in part, a processor and database; and an indicating system consisting of, in part, a tactical display unit system of an aircraft. A navigation system may provide flight parameters for measured and intended flight data as inputs. Other data may also be provided from manual input devices and a datalink system as inputs. The processor of the crosswind component module receives the data, retrieves runway direction data, and determines the data of the crosswind components. An indicating system receives the data of the crosswind components and displays this information.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 8, 2011
    Assignee: Rockwell Collins, Inc.
    Inventors: Charles B. Dirks, Michael J. Krenz, Pamela K. Hahn, David W. Jennings, Tod J. Santel, Robert F. Dancer
  • Publication number: 20110114323
    Abstract: Generating heat within a combination solvent/acid system removes undesirable deposits from petroleum reservoir formations (especially the near well-bore region), oilfield equipment, and petroleum processing equipment. An exothermic reaction occurs between the solvent and the acid and the heat evolved helps remove organic solid deposits. The acids may include organic acid compounds, such as sulfonic acids, sulfuric acid and nitric acid. The solvents may include terpene- and terpene-derivative-containing solvents, including, but not necessarily limited to, limonene, pinene, dipentene, myrcene, turpentines and compounds having at least one double bond, such as methyl furan, dienes, styrene, vinyl acetate and the like. The exothermic reaction produces a great amount of heat, and together with using certain acids and solvents already known as effective to remove paraffin and asphaltene deposition, removing such deposits is improved.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 19, 2011
    Applicant: Baker Hughes Incorporated
    Inventors: David W. Jennings, Samuel Asomaning, Michael E. Newberry