Patents by Inventor John A. C. Archer

John A. C. Archer 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).

  • Method and deregulated enzyme for threonine production
    Patent number: 6649379
    Abstract: Mutagenesis of the gene encoding homoserine dehydrogenase (hom) for production of the amino acid threonine is described. The mutation causes an alteration in the carboxy terminus of the enzyme that interferes with end-product inhibition by threonine. The lack of end-product inhibition causes an overproduction of threonine.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: November 18, 2003
    Assignee: Massachusetts Institute of Technology
    Inventors: John A. C. Archer, Maximillian T. Follettie, Anthony J. Sinskey