Patents by Inventor Egils Grinbergs

Egils Grinbergs 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 foam composite
    Patent number: 5512319
    Abstract: The present invention is directed to a method of applying a polyurethane foam to a fabric and the product produced thereof. This method involves (a) coating the fabric with a silicone surfactant dissolved in water, and (b) expanding the polyurethane foaming mixture in contact with the coated portion of the fabric.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: April 30, 1996
    Assignee: BASF Corporation
    Inventors: John H. Cook, Egils Grinbergs
  • Flame retardant polyurethane foams
    Patent number: 4745133
    Abstract: The invention pertains to flame retardant polyurethane foams prepared by the reaction of a polyoxyalkylene polyether polyol with an organic polyisocyanate and a blowing agent wherein melamine is incorporated as the sole flame retardant compound. The amount of melamine may range from about 10 weight percent to about 55 weight percent of the total composition.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: May 17, 1988
    Assignee: BASF Corporation
    Inventors: Egils Grinbergs, William W. Levis, Jr., Steven D. Gagnon
  • Flame retardant polyurethane foams
    Patent number: RE36358
    Abstract: The invention pertains to flame retardant polyurethane foams prepared by the reaction of a polyoxyalkylene polyether polyol with an organic polyisocyanate and a blowing agent wherein melamine is incorporated as the sole flame retardant compound. The amount of melamine may range from about 10 weight percent to about 55 weight percent of the total composition.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: October 26, 1999
    Assignee: BASF Corporation
    Inventors: Egil Grinbergs, William W. Levis, Jr., Steven D. Gagnon