Patents by Inventor Alison J. Earl

Alison J. Earl 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).

  • DNA molecules and vectors encoding clavulanic acid biosynthesis enzymes
    Patent number: 6037156
    Abstract: DNA sequences obtained from S. clavuligerus, recombinant vectors incorporating such sequences and hosts transformed with such vectors are disclosed. The DNA comprises one or more genes encoding one or more enzymes involved in the biosynthesis of clavulanic acid and may be used to improve the yield of clavulanic acid produced by clavulanic acid-producing organisms such as S. clavuligerus ATCC 27064.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: March 14, 2000
    Assignee: Beecham Group p.l.c.
    Inventors: Ian D. Normansell, John E. Hodgson, Alison J. Earl