Patents by Inventor Umesh Harkal

Umesh Harkal 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).

  • Two-Component, Water-Based Lamination Adhesive and Use of the Same to Bond Substrates and Foams
    Publication number: 20220002600
    Abstract: A water comprising, two component polyurethane dispersion adhesive comprising an anionic polyester polyurethane resin and a solvent-free liquid aliphatic polyisocyanate cross-linker. The dispersion can be reactivated one or more times for edge bonding a flexible sheet material onto a substrate having a main surface, a peripheral surface and an edge connecting the main surface and the peripheral surface.
    Type: Application
    Filed: September 23, 2021
    Publication date: January 6, 2022
    Inventors: Sandeep Kothawade, Girdhari Kumar, Abhijit Hirekerur, Umesh Harkal, Emilie Smith-Heberer
  • Modified glycidyl carbamate resins
    Patent number: 9593258
    Abstract: The invention relates to alcohol-modified glycidyl carbamate resins wherein at least some of the glycidol groups in the resin have been replaced with an alcohol. The invention also relates to coating compositions containing the resins.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: March 14, 2017
    Assignee: NDSU RESEARCH FOUNDATION
    Inventors: Dean C. Webster, Umesh Harkal, James Garrett
  • MODIFIED GLYCIDYL CARBAMATE RESINS
    Publication number: 20150307739
    Abstract: The invention relates to alcohol-modified glycidyl carbamate resins wherein at least some of the glycidol groups in the resin have been replaced with an alcohol. The invention also relates to coating compositions containing the resins.
    Type: Application
    Filed: February 27, 2015
    Publication date: October 29, 2015
    Applicant: NDSU RESEARCH FOUNDATION
    Inventors: Dean C. WEBSTER, Umesh HARKAL, James GARRETT
  • Modified glycidyl carbamate resins
    Patent number: 9051413
    Abstract: The invention relates to alcohol-modified glycidyl carbamate resins wherein at least some of the glycidol groups in the resin have been replaced with an alcohol. The invention also relates to coating compositions containing the resins.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: June 9, 2015
    Assignee: NDSU RESEARCH FOUNDATION
    Inventors: Dean C. Webster, Umesh Harkal, James Garrett
  • MODIFIED GLYCIDYL CARBAMATE RESINS
    Publication number: 20100319580
    Abstract: The invention relates to alcohol-modified glycidyl carbamate resins wherein at least some of the glycidol groups in the resin have been replaced with an alcohol. The invention also relates to coating compositions containing the resins.
    Type: Application
    Filed: September 29, 2008
    Publication date: December 23, 2010
    Inventors: Dean C. Webster, Umesh Harkal, James Garrett