Patents by Inventor Rainer Engelmann

Rainer Engelmann 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).

  • Crucible for holding salt baths for the boriding of steels
    Patent number: 4610437
    Abstract: There is provided a crucible for containing salt baths for the boriding of steels which has a high service life made of a steel which consists of (or consists essentially of) 0.05-0.8% carbon, 0.8-2.5% silicon, 0.1-2.0% manganese, 0-1.5% aluminum, 6-30% chromium, 4-39% nickel and the balance iron.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: September 9, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventors: Ulrich Baudis, Peter Biberbach, Rainer Engelmann