Patents Represented by Attorney Christopher L. Genencor International,Inc. Stone

Find this attorney in the Justia Lawyer Directory

  • Purified cellulase and method of producing
    Patent number: 6017870
    Abstract: A purified novel cellulase composition is provided which may be isolated from a fermentation culture of Trichoderma longibrachiatum and has a molecular weight of about 95-105 kD as approximated on SDS-PAGE (see FIG. 1), a pl of about 5.6-6.8 as estimated on an IEF gel and a pH optimum of about 5.0 on RBB-CMC when measured at 65.degree. C. and pH 4 or lower at temperatures of 40.degree. C. and 50.degree. C.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: January 25, 2000
    Assignee: Genencor International, Inc.
    Inventors: Benjamin S. Bower, Kathleen A. Clarkson, Katherine D. Collier, James T. Kellis, Moira B. Kelly, Edmund A. Larenas
  • Mutant .alpha.-amylase having introduced therein a disulfide bond
    Patent number: 6008026
    Abstract: Novel .alpha.-amylase enzymes are disclosed in which one or more disulfide bonds are introduced into the enzyme via addition or substitution of a residue with a cysteine. The disclosed .alpha.-amylase enzymes show altered or improved stability and/or activity profiles.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: December 28, 1999
    Assignee: Genencor International, Inc.
    Inventor: Anthony G. Day