Patents by Inventor Lin-Fa Wang

Lin-Fa Wang 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).

  • Patent number: 5585253
    Abstract: A cloned gene (epr) encoding a novel extracellular protease, Epr, from Bacillus subtilis is described. Also described is a triple extracellular neutral, alkaline and serine protease deficient Bacillus subtilis mutant strain having deletions in the (npr), (apr) and (epr) genes encoding these proteases. The triple mutant strain was constructed by the gene conversion technique and produces about 1% of the extracellular proteolytic activity of the wild type. It is a particularly useful host for the production of heterologous proteins that are secreted into the growth medium.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: December 17, 1996
    Assignee: The Regents of the University of California
    Inventors: Roy H. Doi, Lin-Fa Wang, Reinhold Br uckner