Patents by Inventor Marvin Michael Fein

Marvin Michael Fein 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).

  • Stabilized pigmented polyolefin compositions
    Patent number: 4066610
    Abstract: Polyolefins pigmented with copper phtalocyanine complexes are rendered stable against heat and oxidation by addition of a metal chelating agent.
    Type: Grant
    Filed: July 14, 1976
    Date of Patent: January 3, 1978
    Assignee: Dart Industries, Inc.
    Inventors: Kornel Dezso Kiss, John Leslie Hugh Allan, Marvin Michael Fein
  • Dyeable propylene polymer compositions
    Patent number: 3997629
    Abstract: A propylene polymer composition having excellent affinity towards basic dyestuffs is produced by blending a propylene polymer with an alternating copolymer of an alkyl vinyl ether and maleic anhydride, the alkyl group of the alkyl vinyl ether containing at least 8 carbon atoms.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: December 14, 1976
    Assignee: Dart Industries Inc.
    Inventors: Ramchandra K. Hulyalkar, Marvin Michael Fein, Jan Edmond Vandegaer
  • 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