Patents by Inventor Claus-Peter Lahmann

Claus-Peter Lahmann 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).

  • Process for the production of oxidation-resistant sintered silicon nitride bodies with improved mechanical strength
    Patent number: 4312899
    Abstract: A process for the production of oxidation-resistant sintered silicon nitride bodies having improved mechanical strength involves dissolving aluminum oxide, aluminum nitride, or mixtures thereof by diffusion in the surface of the sintered silicon nitride bodies. The diffusion is effected by embedding the bodies within powder of aluminum oxide, aluminum nitride or mixture thereof and by heating the embedded bodies to a temperature of at least 1300.degree. C.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: January 26, 1982
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventor: Claus-Peter Lahmann