Patents by Inventor Christopher Philip Price

Christopher Philip Price 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).

  • Phenylalanine dehydrogenase production
    Patent number: 5714364
    Abstract: A method for producing in culture phenylalanine dehydrogenase at yields of 50+ units of enzyme per litre of culture, one unit measured as the amount required to convert one micro-mole of phenylalanine to phenyl pyrovic acid at 25.degree. C. and pH 10.8, in a growth medium comprising a nitrogen source, a buffer, phenylalanine or phenylpyruvic acid or a salt thereof at 20 mM and optionally a vitamin solution. Using phenylalanine at about 100 mM gives yields of phenylalanine dehydrogenase enzyme of 350+ units per liter of culture.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: February 3, 1998
    Assignee: Microbiological Research Authority
    Inventors: Peter Michael Hammond, Graham Mark Brearley, Christopher Philip Price