Patents by Inventor Lothar Peier

Lothar Peier 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).

  • Rust transforming composition
    Patent number: 4086182
    Abstract: A surface film of oxide on iron or steel is converted to a corrosion-resistant film by treatment with a composition comprising an aqueous dispersion or emulsion of a synthetic binding agent and a complexing agent for the iron which is a polymeric esterification product of an aromatic oxycarboxylic acid containing phenolic groups and a substance selected from the group consisting of acid anhydrides and substituted acid anhydrides. Advantageously the composition further comprises a solution of a synthetic plastics material.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: April 25, 1978
    Assignee: Noverox AG.
    Inventors: Erich Hengelhaupt, Lothar Peier