Patents by Inventor Raymond A. Stewart

Raymond 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).

  • Patent number: 11780940
    Abstract: An N-vinyl amide polymer is disclosed. The N-vinyl amide polymer is a reaction product of: a monomer component comprising an N-vinyl amide; and a chain transfer agent of the formula: wherein each occurrence of R1 is independently a C1-20 alkylene, a C1-20 heteroalkylene, a C3-20 cycloalkylene, a C3-20 heterocycloalkylene, a C6-20 arylene, or a combination thereof, and R1 is substituted or unsubstituted; R2 is a divalent or multivalent organic group having 2 to 40 carbon atoms; and n is at least 2.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: October 10, 2023
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Kui Xu, Vaithilingam Panchalingam, Wojciech J. Jakubowski, Szymon Jankowski, Jonathan Raymond Stewart-Ayala, Steven Jackson, Christina Sanders
  • Publication number: 20210403618
    Abstract: An N-vinyl amide polymer is disclosed. The N-vinyl amide polymer is a reaction product of: a monomer component comprising an N-vinyl amide; and a chain transfer agent of the formula: wherein each occurrence of R1 is independently a C1-20 alkylene, a C1-20 heteroalkylene, a C3-20 cycloalkylene, a C3-20 heterocycloalkylene, a C6-20 arylene, or a combination thereof, and R1 is substituted or unsubstituted; R2 is a divalent or multivalent organic group having 2 to 40 carbon atoms; and n is at least 2.
    Type: Application
    Filed: June 29, 2020
    Publication date: December 30, 2021
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Kui Xu, Vaithilingam Panchalingam, Wojciech J. Jakubowski, Szymon Jankowski, Jonathan Raymond Stewart-Ayala, Steven Jackson, Christina Sanders
  • Patent number: 10973230
    Abstract: Compositions and methods for enhancing plant growth and crop yield in legumes and non-legumes are described. The compositions include lipo-chitooligosaccharides in combination with chitins/chitosans or in combination with compounds or in combination with a herbicide. The method includes applying the compositions to seeds and/or plants either concomitantly or sequentially.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: April 13, 2021
    Assignee: NOVOZYMES BIOAG A/S
    Inventors: Raymond Stewart Smith, Robert Martin Osburn
  • Publication number: 20180160685
    Abstract: Compositions and methods for enhancing plant growth and crop yield in legumes and non-legumes are described. The compositions include lipo-chitooligosaccharides in combination with chitins/chitosans or in combination with flavonoid compounds or in combination with a herbicide. The method includes applying the compositions to seeds and/or plants either concomitantly or sequentially.
    Type: Application
    Filed: January 25, 2018
    Publication date: June 14, 2018
    Applicant: NOVOZYMES BIOAG A/S
    Inventors: Raymond Stewart Smith, Robert Martin Osburn
  • Publication number: 20160143280
    Abstract: Compositions and methods for enhancing plant growth and crop yield in legumes and non-legumes are described. The compositions include lipo-chitooligosaccharides in combination with chitins/chitosans or in combination with compounds or in combination with a herbicide. The method includes applying the compositions to seeds and/or plants either concomitantly or sequentially.
    Type: Application
    Filed: January 25, 2016
    Publication date: May 26, 2016
    Applicant: NOVOZYMES BIOAG A/S
    Inventors: Raymond Stewart Smith, Robert Martin Osburn
  • Patent number: 9253989
    Abstract: Compositions and methods for enhancing plant growth and crop yield in legumes and non-legumes are described. The compositions include lipo-chitooligosaccharides in combination with chitins/chitosans or in combination with flavonoid compounds or in combination with a herbicide. The method includes applying the compositions to seeds and/or plants either concomitantly or sequentially.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: February 9, 2016
    Assignee: Novozymes BioAg A/S
    Inventors: Raymond Stewart Smith, Robert Martin Osburn
  • Patent number: 8357631
    Abstract: Compositions and methods for enhancing plant growth and crop yield in legumes and non-legumes are described. The compositions include lipo-chitooligosaccharides in combination with chitins/chitosans or in combination with flavonoid compounds or in combination with a herbicide. The method includes applying the compositions to seeds and/or plants either concomitantly or sequentially.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: January 22, 2013
    Assignee: Novozymes Bioag, Inc.
    Inventors: Raymond Stewart Smith, Robert Martin Osburn
  • Patent number: 8354151
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyester polyol component.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: January 15, 2013
    Assignees: Bayer MaterialScience LLC, Bayer MaterialScience AG
    Inventors: Ramesh Subramanian, Raymond Stewart, Abdullah Ekin, Torsten Pohl
  • Publication number: 20130011591
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyacrylic polyol component.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicant: Bayer MaterialScience LLC
    Inventors: Abdullah Ekin, Raymond Stewart, Ramesh Subramanian, Torsten Pohl
  • Publication number: 20130011592
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyester polyol component.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicants: Bayer MaterialScience AG, Bayer MaterialScience LLC
    Inventors: Ramesh Subramanian, Raymond Stewart, Abduallah Ekin, Torsten Pohl
  • Publication number: 20130011590
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyurethane polyol component.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicants: Bayer MaterialScience AG, Bayer MaterialScience LLC
    Inventors: Ramesh Subramanian, Raymond Stewart, Abdullah Ekin, William Corso, Larry Smedley, Torsten Pohl
  • Patent number: 8343601
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyacrylic polyol component.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: January 1, 2013
    Assignees: Bayer MaterialScience LLC, Bayer MaterialScience AG
    Inventors: Abdullah Ekin, Raymond Stewart, Ramesh Subramanian, Torsten Pohl
  • Publication number: 20120201982
    Abstract: The present invention relates to an aqueous polyurethane coating composition comprising: 1) 1 to 99 wt. % of the reaction product of: a) a polyol component, which is soluble or dispersible in water and is the reaction product of a polyisocyanate component containing 50 to 100 wt. % of an aliphatic diisocyanate, a polyol component containing one or more polyether polyols and having an OH number of 25 to 350 mg KOH/g solids and an isocyanate-reactive component containing at least one group capable of salt formation; and b) polyisocyanate component, which is soluble or dispersible in water, has blocked isocyanate groups and is the reaction product of one or more polyisocyanates having an isocyanurate group content of 0 to 30 wt. %, a reversible, monofunctional blocking agent for isocyanate groups, a nonionic hydrophilic component and a stabilizing component which has 1 to 2 hydrazide groups and a molecular weight of 74 to 300 g/mol; and 2) 1 to 99 wt.
    Type: Application
    Filed: August 18, 2010
    Publication date: August 9, 2012
    Applicant: Bayer MaterialScience LLC
    Inventors: Raymond Stewart, Scott A. Grace, Dennis Postupack, Louis Mattos, JR., Ramesh Subramanian, Abdullah Ekin, Sterling L. Steward, Christopher R. Mubarak
  • Publication number: 20110045219
    Abstract: The present invention relates to an aqueous polyurethane coating composition comprising: 1) 1 to 99 wt. % of the reaction product of: a) a polyol component, which is soluble or dispersible in water and is the reaction product of a polyisocyanate component containing 50 to 100 wt. % of an aliphatic diisocyanate, a polyol component containing one or more polyether polyols and having an OH number of 25 to 350 mg KOH/g solids and an isocyanate-reactive component containing at least one group capable of salt formation; and b) polyisocyanate component, which is soluble or dispersible in water, has blocked isocyanate groups and is the reaction product of one or more polyisocyanates having an isocyanurate group content of 2 to 30 wt. %, a reversible, monofunctional blocking agent for isocyanate groups, a nonionic hydrophilic component and a stabilizing component which has 1 to 2 hydrazide groups and a molecular weight of 70 to 300; and 2) 1 to 99 wt.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 24, 2011
    Applicant: Bayer MaterialScience LLC
    Inventors: Raymond Stewart, Scott A. Grace, Dennis Postupack, Louis Mattos, JR., Ramesh Subramanian, Abdullah Ekin, Sterling L. Steward, Christopher R. Mubarak
  • Publication number: 20100093537
    Abstract: Compositions and methods for enhancing plant growth and crop yield in legumes and non-legumes are described. The compositions include lipo-chitooligosaccharides in combination with chitins/chitosans or in combination with flavonoid compounds or in combination with a herbicide. The method includes applying the compositions to seeds and/or plants either concomitantly or sequentially.
    Type: Application
    Filed: January 8, 2008
    Publication date: April 15, 2010
    Applicant: EMD CROP BIOSCIENCE, INC.
    Inventors: Raymond Stewart Smith, Robert Martin Osburn
  • Patent number: 4709939
    Abstract: A centering mechanism is provided for the front wheels of a wheelchair having pairs of front and rear wheels. The centering mechanism has particular applicability for racing wheelchairs, such as those used in marathon racing. Linkage is employed to form a parallelogram structure with hinged corners, upon which the front wheels of the wheelchair are mounted by means of stub axles. The linkage holds the front wheels mutually parallel to each other while the centering mechanism returns the front wheels to parallel alignment with the rear wheels upon release of a steering device.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: December 1, 1987
    Inventor: Raymond Stewart
  • Patent number: 4463529
    Abstract: Articles are disclosed for use in providing both water-proofing protection to a foundation wall, and a support system for decorative landscaping material around the perimeter of a building. The article is in the form of an open pan having a waterproof and substantially impervious bottom, a continuous back-wall; a front-wall including perforations, and a pair of side-walls. The pan is used by placing it adjacent to a foundation wall at ground level with its back-wall abutting the foundation wall, its bottom on the ground at grade level, and its perforated front-wall spaced from the foundation wall. Additional pans may be placed adjacent to the pan at one or both of its side-walls.
    Type: Grant
    Filed: March 9, 1983
    Date of Patent: August 7, 1984
    Inventors: Ronald E. Singer, Raymond A. Stewart