Patents by Inventor Patrick Czaplewski

Patrick Czaplewski 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).

  • Hot melt adhesive
    Patent number: 5041492
    Abstract: Hot melt adhesive compositions for bonding rigid polypropylene substrates comprise intimate blends of an amorphous copolyolefin copolymer, a polyolefin wax, a rosin-based ester resin and a polybutylene copolymer.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: August 20, 1991
    Assignee: Findley Adhesives, Inc.
    Inventors: George Koprowicz, Patrick Czaplewski, Michael Kaczkowski