Patents by Inventor Fred W. Steele

Fred W. Steele 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).

  • Photopolymerizable polymers having anhydride-containing groups
    Patent number: 3933746
    Abstract: The polymer herein described comprises an anhydride-containing group represented by the structure: ##EQU1## wherein R is a residue of a dibasic acid selected from the group consisting of aliphatic dicarboxylic acids and aromatic dicarboxylic acids, and X is selected from the group consisting of hydrogen, halogen, lower alkoxy, lower alkyl and nitro. The polymers are essentially useful as photopolymerizable materials and as adhesives.
    Type: Grant
    Filed: June 14, 1973
    Date of Patent: January 20, 1976
    Assignee: Ball Corporation
    Inventor: Fred W. Steele