Patents by Inventor Norman F. Haard

Norman F. Haard 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).

  • Bacterial enzyme used as cheese ripening aid
    Patent number: 4690826
    Abstract: A process for producing cheddar cheese having accelerated ripening properties. The process involves using a ripening aid which is a protease derived from the psychrotrophic flora of raw milk, and preferably from the bacteria Pseudomonas fluorescens. The ripening aid is added to the milk starting material prior to or simultaneously with the treatment with a coagulant (renneting agent) and it remains in the cheese product and enhances the development of desirable flavor during the aging (ripening) of the cheese.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: September 1, 1987
    Assignee: Canadian Patents and Development Limited
    Inventors: Norman F. Haard, Thakor R. Patel
  • Rennet substitute from seals for making cheese
    Patent number: 4526868
    Abstract: A high potency calf rennet substitute having four proteolytic enzyme components is extracted from the stomach mucosa or whole stomach of seals. The substitute closely matches the characteristics of calf rennet by having good milk clotting efficiency over a wide range of pH of 6.0 to 6.8, a high ratio of milk clotting to proteolytic activity, relative inability to inactivate ribonuclease and limited hydrolysis of casein. The substitute results in a desirable aged flavor in cheddar cheese.
    Type: Grant
    Filed: October 12, 1982
    Date of Patent: July 2, 1985
    Inventors: Kazi M. Shasuzzaman, Norman F. Haard