Patents by Inventor Manfred Diehl

Manfred Diehl 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 accelerated solidification of hydraulic cement mixture
    Patent number: 4435216
    Abstract: The solidification of hydraulic cement mixtures can be accelerated by addition of crystalline zeolites. Preferably, there are employed zeolites of Types A, X, and P.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: March 6, 1984
    Assignee: Degussa Aktiengesellschaft
    Inventors: Manfred Diehl, Roland Bergmann