Patents by Inventor Floyd Riddle, Jr.

Floyd Riddle, Jr. 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).

  • Patent number: 5997658
    Abstract: An aqueous stripping composition comprising a mixture of an organic amine and a corrosion inhibitor which is benzotriazole alone or in combination with gallic acid, its ester or analog. The stripping composition is effective to strip photoresists, residues from plasma process generated organic, metal-organic materials, inorganic salts, oxides, hydroxides or complexes in combination with or exclusive of organic photoresist films at low temperatures with little corrosion of copper or titanium containing substrates.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: December 7, 1999
    Assignee: Ashland Inc.
    Inventors: Darryl W. Peters, Irl E. Ward, Francis Michelotti, Floyd Riddle, Jr.