Patents by Inventor Gary J. Carlton

Gary J. Carlton 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).

  • Process for preparing phenylalanine
    Patent number: 4710467
    Abstract: Phenylalanine is prepared by contacting phenylpyruvic acid or phenylpyruvate with an enzyme having transaminase activity in the presence of an amine donor. The enyzme may be free or immobilized or in whole cells which may be free or immobilized. The enzyme is preferably contained by E. coli ATCC 11303. Yield of phenylalanine can be improved by removing oxaloacetate, produced during reaction of the enzyme, to drive the reaction to completion. Phenylalanine may also be produced from cinnamic acid using immobilized cells having phenylalanine ammonia lyase activity.
    Type: Grant
    Filed: August 14, 1984
    Date of Patent: December 1, 1987
    Assignee: Purification Engineering, Inc.
    Inventors: Louis L. Wood, Gary J. Carlton