Patents by Inventor Paul Alexander Colgate

Paul Alexander Colgate 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).

  • Copper chromite catalyst and the process for producing it
    Patent number: 3935128
    Abstract: An improved copper chromite catalyst having high density, low monovalent ion content, high activity and resistance to poisoning is prepared by reacting a soluble copper salt with chromic acid or a dichromate in solution in the presence of ammonia and urea to precipitate a copper-chromium-nitrogen complex, washing, drying and calcining the precipitate.
    Type: Grant
    Filed: December 30, 1974
    Date of Patent: January 27, 1976
    Assignee: Dart Industries Inc.
    Inventors: Marvin Michael Fein, Paul Alexander Colgate, Ronald Allan Kent