Patents by Inventor Lapyuen Lam

Lapyuen Lam 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 production of avermectin aglycones and cultures therefor
    Patent number: 5576200
    Abstract: Mutants of Streptomyces avermitilis lacking ability to produce glycosylated avermectins and lacking branched-chain 2-oxo acid dehydrogenase activity, method for preparation thereof, and use thereof to produce natural and non-natural avermectin aglycones useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 19, 1996
    Assignee: Pfizer Inc.
    Inventors: Lapyuen Lam, Hamish A. I. McArthur, Richard G. Wax