Patents by Inventor Heinz G. Friedrich

Heinz G. Friedrich 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 of catalytic methanation
    Patent number: 4217295
    Abstract: Methanation of carbon oxides such as carbon monoxide and carbon dioxide with hydrogen to produce methane is carried out with the aid of a heated catalyst which is the calcination product of a serpentine containing nickel and optionally magnesium and other elements together with silicon in the essentially laminar nickel serpentine. The catalysts exhibit good conversion at relatively low temperatures, are relatively insensitive to high temperature excursions, and have an extended life.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: August 12, 1980
    Assignee: NL Industries, Inc.
    Inventors: Heinz G. Friedrich, James V. Kennedy