Patents by Inventor Concetta M. Kleppe

Concetta M. Kleppe 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).

  • Biostatic and biocidal compositions
    Patent number: 5290894
    Abstract: Polymeric compounds having a polyacrolein sub unit in aldehyde, hydrated, hemi acetal or acetal form are provided which have biocidal or biostatic properties. The polymeric compound may be used to treat, or be included in, a wide range of products.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: March 1, 1994
    Assignee: Biopolymers Limited
    Inventors: Graham J. H. Melrose, Concetta M. Kleppe, Jeffrey W. Langley, Jeffrey M. Stewart, Jacobus Van Dyk