Patents by Inventor Ewald Wicke

Ewald Wicke 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 reactive calcium oxide
    Patent number: 3991172
    Abstract: Reactive calcium oxide is produced on an industrial scale by decomposing calcium carbonate having a grain size of less than 200 .mu.m at a temperature of at least 850.degree. C and at a CO.sub.2 --partial pressure of not more than 40% of the CO.sub.2 --equilibrium pressure corresponding to the formation of the reactive calcium oxide.
    Type: Grant
    Filed: January 4, 1974
    Date of Patent: November 9, 1976
    Assignee: Rheinische Kalksteinwerke GmbH
    Inventors: Ewald Wicke, Josef Wuhrer