Patents by Inventor Robert A. Marsh

Robert A. Marsh 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).

  • Elevating conveyor for small articles
    Patent number: 5385227
    Abstract: A elevating conveyor for capsules includes two pairs of alternately reciprocating plates driven by respective pitman arms from a centerless pulley. The plates are inclined from the vertical, so that small articles roll onto the top surface of each plate as it becomes even with that of the preceding plate.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: January 31, 1995
    Inventor: Robert A. Marsh
  • Production of edible protein containing substances
    Patent number: 4555485
    Abstract: The production of an edible protein-containing substance by continuous fermentation using Fusarium graminearum in a culture medium containing all necessary growth promoting nutrient substances. Oxygen constitutes the limiting nutrient and is present to support cell concentration in the culture without the occurrence of anaerobic growth.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: November 26, 1985
    Assignee: Ranks Hovis McDougall, PLC
    Inventor: Robert A. Marsh
  • Detergent compositions comprising modified proteins
    Patent number: 4195077
    Abstract: Compositions are provided which protect keratinous material such as skin and hair from the deleterious effects of detergents and adverse climatic conditions. Said compositions contain a modified protein and a surface active agent.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: March 25, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Robert A. Marsh, Gordon J. Mackie, Peter Hale