Patents by Inventor Biswajit Ghosh

Biswajit Ghosh 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).

  • Aqueous primer coating composition and use
    Patent number: 10301478
    Abstract: An aqueous primer coating composition to a substrate comprises an aqueous cationic polyurethane and an aqueous polymer of oxazoline or N-vinylpyrrolidone. Also disclosed is a method applying the coating composition to the substrate and an electrophotographical printing medium coated with the coating composition.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: May 28, 2019
    Assignee: HERCULES LLC
    Inventors: Venkataramanan Seshadri, Charles Joseph Wasserman, Biswajit Ghosh, Byoungchul Lee
  • AQUEOUS PRIMER COATING COMPOSITION AND USE
    Publication number: 20170335115
    Abstract: An aqueous primer coating composition to a substrate comprises an aqueous cationic polyurethane and an aqueous polymer of oxazoline or N-vinylpyrrolidone. Also disclosed is a method applying the coating composition to the substrate and an electrophotographical printing medium coated with the coating composition.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 23, 2017
    Applicant: HERCULES LLC
    Inventors: Venkataramanan SESHADRI, Charles J. WASSERMAN, Biswajit GHOSH, Byoungchul LEE
  • Self-repairing cyclic oxide-substituted chitosan polyurethane networks
    Patent number: 9200089
    Abstract: Thermosetting polymeric compositions, such as polyurethane compositions, and related methods are provided. The invention relates to coating and polymer compositions and related methods derived from a biodegradable natural polysaccharide compound such as chitosan, pectin, heparin, and combinations thereof reacted to a cyclic oxide compound, such as an oxetane, oxolane or oxepane compound. The compositions and methods of the present invention exhibit self-repairing properties upon exposure to ultraviolet (UV) light. The compositions and methods of the present invention can be used in many coating applications, such as the transportation, packaging, fashion, and biomedical industries.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: December 1, 2015
    Assignee: The University of Southern Mississippi
    Inventors: Marek W. Urban, Biswajit Ghosh
  • SELF-REPAIRING CYCLIC OXIDE-SUBSTITUTED CHITOSAN POLYURETHANE NETWORKS
    Publication number: 20140127420
    Abstract: Thermosetting polymeric compositions, such as polyurethane compositions, and related methods are provided. The invention relates to coating and polymer compositions and related methods derived from a biodegradable natural polysaccharide compound such as chitosan, pectin, heparin, and combinations thereof reacted to a cyclic oxide compound, such as an oxetane, oxolane or oxepane compound. The compositions and methods of the present invention exhibit self-repairing properties upon exposure to ultraviolet (UV) light. The compositions and methods of the present invention can be used in many coating applications, such as the transportation, packaging, fashion, and biomedical industries.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: The University of Southern Mississippi
    Inventors: Marek W. Urban, Biswajit Ghosh
  • Self-repairing cyclic oxide-substituted chitosan polyurethane networks
    Patent number: 8658786
    Abstract: Thermosetting polymeric compositions, such as polyurethane compositions, and related methods are provided. The invention relates to coating and polymer compositions and related methods derived from a biodegradable natural polysaccharide compound such as chitosan, pectin, heparin, and combinations thereof reacted to a cyclic oxide compound, such as an oxetane, oxolane or oxepane compound. The compositions and methods of the present invention exhibit self-repairing properties upon exposure to ultraviolet (UV) light. The compositions and methods of the present invention can be used in many coating applications, such as the transportation, packaging, fashion, and biomedical industries.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: February 25, 2014
    Assignee: The University of Southern Mississippi
    Inventors: Marek W. Urban, Biswajit Ghosh
  • Self-Repairing Cyclic Oxide-Substituted Chitosan Polyurethane Networks
    Publication number: 20100266784
    Abstract: Thermosetting polymeric compositions, such as polyurethane compositions, and related methods are provided. The invention relates to coating and polymer compositions and related methods derived from a biodegradable natural polysaccharide compound such as chitosan, pectin, heparin, and combinations thereof reacted to a cyclic oxide compound, such as an oxetane, oxolane or oxepane compound. The compositions and methods of the present invention exhibit self-repairing properties upon exposure to ultraviolet (UV) light. The compositions and methods of the present invention can be used in many coating applications, such as the transportation, packaging, fashion, and biomedical industries.
    Type: Application
    Filed: March 12, 2010
    Publication date: October 21, 2010
    Inventors: Marek W. Urban, Biswajit Ghosh