Patents by Inventor M. M. Johnson

M. M. Johnson 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 removal of arsenic from gases
    Patent number: 4605812
    Abstract: Arsines are removed from streams of hydrocarbons or inert gases by contacting the streams with copper (II) chromite catalyst.
    Type: Grant
    Filed: June 5, 1984
    Date of Patent: August 12, 1986
    Assignee: Phillips Petroleum Company
    Inventors: G. P. Nowack, M. M. Johnson