Patents by Inventor Stefan J. Kelly

Stefan J. Kelly 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).

  • Polyurethane moisture barrier coatings containing thermoplastic resins
    Patent number: 11193041
    Abstract: A moisture barrier coating includes the reaction product of (A) at least one polyol and (B) at least one polyisocyanate. The moisture barrier coating further includes at least one amorphous thermoplastic material that forms a homogeneous mixture with the polyol, and is nonreactive with the polyol and with the polyisocyanate. A controlled release fertilizer, a method for the production of a controlled release fertilizer, and a moisture barrier coating composition are also disclosed.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: December 7, 2021
    Assignee: SURFACE CHEMISTS OF FLORIDA, INC.
    Inventors: A. Jaeton Glover, Alice P. Hudson, Stefan J. Kelly, Russell Klare, Cynthia Moss, Matthew Taylor
  • Epoxide moisture barrier coatings containing thermoplastic resins
    Patent number: 10919816
    Abstract: A moisture barrier coating includes the reaction product of (A) at least one polyglycidyl ether resin, and (B) at least one epoxy curing agent comprising amines. The moisture barrier coating further includes at least one amorphous thermoplastic material that is nonreactive with A and with B, and that forms a homogeneous mixture with at least one of A or B. A controlled release fertilizer, a method for the production of a controlled release fertilizer, and a moisture barrier coating system are also disclosed.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: February 16, 2021
    Assignee: SURFACE CHEMISTS OF FLORIDA, INC.
    Inventors: A. Jaeton Glover, Alice P. Hudson, Stefan J. Kelly, Russell Klare, Cynthia Moss, Matthew Taylor