Patents by Inventor David Samuel Pilsk

David Samuel Pilsk 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).

  • Thermoplastic Polyurethane Compositions Comprising Nitro-Substituted Polyester Diols
    Publication number: 20230130031
    Abstract: This invention relates to the field of polymers. More specifically, the invention comprises thermoplastic polyurethane elastomers comprising polyesters comprising nitro-substituted dicarboxylic acids that are products obtained by decomposition of polyethylene. The thermoplastic polyurethane elastomers described herein exhibit higher glass transition temperatures and higher Shore A hardness compared to thermoplastic polyurethane elastomers synthesized from similar polyester diols made from virgin monomers that do not contain nitro substitution.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 27, 2023
    Inventors: Katrina Marie KNAUER, Jennifer LE ROY, Russell Clayton PRATT, David Samuel PILSK, Cody James HIGGINSON
  • POLYMERIZABLE COMPOSITIONS COMPRISING NITRO-SUBSTITUTED POLYESTER DIOLS
    Publication number: 20210284793
    Abstract: This invention relates to the field of polymers. More specifically, the invention comprises photopolymerizable polyesters and polyester urethane oligomers comprising nitro-substituted dicarboxylic acids that are products obtained by decomposition of polyethylene. The composition described herein are useful for 3D printing, coatings and other uses.
    Type: Application
    Filed: July 9, 2020
    Publication date: September 16, 2021
    Applicant: BioCellection Inc.
    Inventors: Cody James HIGGINSON, Katrina Marie KNAUER, Jennifer LE ROY, Russell Clayton PRATT, David Samuel PILSK
  • Polymerizable compositions comprising nitro substituted polyester diols
    Patent number: 11111334
    Abstract: This invention relates to the field of polymers. More specifically, the invention comprises photopolymerizable polyesters and polyester urethane oligomers comprising nitro-substituted dicarboxylic acids that are products obtained by decomposition of polyethylene. The composition described herein are useful for 3D printing, coatings and other uses.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: September 7, 2021
    Assignee: BioCellection Inc.
    Inventors: Cody James Higginson, Katrina Marie Knauer, Jennifer Le Roy, Russell Clayton Pratt, David Samuel Pilsk
  • Thermoplastic polyurethane compositions comprising nitro-substituted polyester diols
    Patent number: 11028217
    Abstract: This invention relates to the field of polymers. More specifically, the invention comprises thermoplastic polyurethane elastomers comprising polyesters comprising nitro-substituted dicarboxylic acids that are products obtained by decomposition of polyethylene. The thermoplastic polyurethane elastomers described herein exhibit higher glass transition temperatures and higher Shore A hardness compared to thermoplastic polyurethane elastomers synthesized from similar polyester diols made from virgin monomers that do not contain nitro substitution.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: June 8, 2021
    Assignee: BioCellection Inc.
    Inventors: Katrina Marie Knauer, Jennifer Le Roy, Cody James Higginson, Russell Clayton Pratt, David Samuel Pilsk