Patents by Inventor Edwin P. Cornwall

Edwin P. Cornwall 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).

  • Method and composition for the removal of phenolic resin coatings from aluminum
    Patent number: 4290819
    Abstract: A composition and process for the removal of phenolic resin composites from aluminum and its alloys which results in a minimum of corrosion to said metals. The process uses a solvent solution of nitric acid, a hexavalent chromium and incidental water in the proportions of about 0.01-0.12 moles of hexavalent chromium and 1-1.7 moles of H.sub.2 O per mole HNO.sub.3.
    Type: Grant
    Filed: January 3, 1980
    Date of Patent: September 22, 1981
    Assignee: The Boeing Company
    Inventors: Edwin P. Cornwall, Walter Batiuk