Patents by Inventor Walter C. Kossa

Walter C. Kossa 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).

  • Coupling of polyorganophosphazenes to carboxylic acid
    Patent number: 4440921
    Abstract: A carboxylated phosphazene polymer, comprising a phosphazene polymer backbone covalently coupled to a carboxylate-containing compound through a divalent organic radical attached at one end to the carboxylate by an amide bond formed at a primary aliphatic amino group of the radical and at the other end to a phosphorous of the phosphazene backbone.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: April 3, 1984
    Assignee: Research Corporation
    Inventors: Harry R. Allcock, Thomas X. Neenan, Walter C. Kossa