Patents by Inventor Travis P. Holbrook

Travis P. Holbrook 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).

  • Polyolefin dispersants and methods of making and using thereof
    Patent number: 11795247
    Abstract: Provided herein are polyolefin dispersants, as well as methods for producing polyolefin dispersants. The polyolefin dispersants can be defined by the formula below where Rx is cationic initiator residue; Ra is a polyolefin group; R1 and R2 are each, independently in each —(CR1R2) unit, H, alkyl, alkoxy, or alkylaryl; R3 and R4 are each, independently, H, alkyl, or alkoxy; m is an integer from 1 to 20; n is an integer from 1 to 6; r is an integer from 1 to 4; Y is a polyvalent amine linker comprising one or more tertiary amines, wherein the polyvalent amine linker does not include a primary amine or a secondary amine; and A is absent, or comprises a dispersive moiety.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: October 24, 2023
    Assignee: The University of Southern Mississippi
    Inventors: Robson F. Storey, Travis P. Holbrook, C. Garrett Campbell, Georgeta Masson
  • Polyolefin Dispersants and Methods of Making and Using Thereof
    Publication number: 20210189030
    Abstract: Provided herein are polyolefin dispersants, as well as methods for producing polyolefin dispersants. The polyolefin dispersants can be defined by the formula below where Rx is cationic initiator residue; Ra is a polyolefin group; R1 and R2 are each, independently in each —(CR1R2) unit, H, alkyl, alkoxy, or alkylaryl; R3 and R4 are each, independently, H, alkyl, or alkoxy; m is an integer from 1 to 20; n is an integer from 1 to 6; r is an integer from 1 to 4; Y is a polyvalent amine linker comprising one or more tertiary amines, wherein the polyvalent amine linker does not include a primary amine or a secondary amine; and A is absent, or comprises a dispersive moiety.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventors: Robson F. Storey, Travis P. Holbrook, C. Garrett Campbell, Georgeta Masson
  • Polyolefin dispersants and methods of making and using thereof
    Patent number: 10875946
    Abstract: Provided herein are polyolefin dispersants, as well as methods for producing polyolefin dispersants. The polyolefin dispersants can be defined by the formula below where Rx is cationic initiator residue; Ra is a polyolefin group; R1 and R2 are each, independently in each —(CR1R2) unit, H, alkyl, alkoxy, or alkylaryl; R3 and R4 are each, independently, H, alkyl, or alkoxy; m is an integer from 1 to 20; n is an integer from 1 to 6; r is an integer from 1 to 4; Y is a polyvalent amine linker comprising one or more tertiary amines, wherein the polyvalent amine linker does not include a primary amine or a secondary amine; and A is absent, or comprises a dispersive moiety.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 29, 2020
    Assignees: Chevron Oronite Company LLC, The University of Southern Mississippi
    Inventors: Robson F. Storey, Travis P. Holbrook, C. Garrett Campbell, Georgeta Masson
  • Polyolefin Dispersants and Methods of Making and Using Thereof
    Publication number: 20190284314
    Abstract: Provided herein are polyolefin dispersants, as well as methods for producing polyolefin dispersants. The polyolefin dispersants can be defined by the formula below where Rx is cationic initiator residue; Ra is a polyolefin group; R1 and R2 are each, independently in each —(CR1R2) unit, H, alkyl, alkoxy, or alkylaryl; R3 and R4 are each, independently, H, alkyl, or alkoxy; m is an integer from 1 to 20; n is an integer from 1 to 6; r is an integer from 1 to 4; Y is a polyvalent amine linker comprising one or more tertiary amines, wherein the polyvalent amine linker does not include a primary amine or a secondary amine; and A is absent, or comprises a dispersive moiety.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 19, 2019
    Inventors: Robson F. Storey, Travis P. Holbrook, C. Garrett Campbell, Georgeta Masson