Patents by Inventor Horst-Peter Geimer

Horst-Peter Geimer 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).

  • Phosphate conversion coatings for composite metals
    Patent number: 4775427
    Abstract: A process for forming a protective coating for protecting a substrate metal from corrosion and improving the adhesion of subsequently applied coatings, comprising treating the metal with an aqueous acidic solution containing molybdate in an amount of from 0.01 to 10.0 g/l, chromium in an amount of from 0.01 to 10.0 g/l, fluoride in an amount of from 0.01 to 10.0 g/l, phosphate in an amount of from 0.01 to 10.0 g/l, zinc in an amount of from 0.005 to 1.0 g/l, and acetate in an amount of from 0.01 to 10.0 g/l. The process successfully treats a variety of metals, and provides high-quality coated composites.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: October 4, 1988
    Assignee: Gerhard Collardin GmbH
    Inventors: Heinz Portz, Horst-Peter Geimer