Patents by Inventor Patricia M. Lekso

Patricia M. Lekso 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).

  • Leather treatment selected amphiphilic copolymer
    Patent number: 5330537
    Abstract: A method of improving the strength, temper and water resistance of leather utilizing selected amphiphilic copolymers is provided. The amphiphilic copolymers are formed from a predominant amount of at least one hydrophobic monomer and a minor amount of at least one copolymerizable hydrophilic monomer. The method is particularly useful as a one step substitute for conventional retanning and fatliquoring treatment steps. In a preferred embodiment the amphiphilic copolymers also provide a significant degree of water resistance to the leather.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: July 19, 1994
    Assignee: Rohm and Haas Company
    Inventors: Thomas Stewart, Patricia M. Lekso, Anton G. El A'mma