Patents by Inventor James E. Callaway

James E. Callaway 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 encoding polypeptides with activity against gram-positive and gram-negative bacteria
    Patent number: 5344765
    Abstract: The invention relates to cecropin-like polypeptides with a variety of C-terminus modifications. Conversion of the terminal carboxy group to a homoserine extended neutral, negatively charged or positively charged form results in the polypeptides of the invention that have significant bactericidal effects against both Gram-positive and Gram-negative bacteria.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: September 6, 1994
    Assignee: Xoma Corporation
    Inventors: Jiunu S. Lai, Jar-How Lee, James E. Callaway
  • Cecropin polypetides with activity against Gram-positive and Gram-negative bacteria
    Patent number: 5166321
    Abstract: The invention relates to cecropin-like polypeptides with a variey of C-terminus modifications. Conversion of the terminal carboxy group to a homoserine extended neutral, negatively charged or positively charged form results in the polypeptides of the invention that have significant bactericidal effects against both Gram-positive and Gram-negative bacteria.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: November 24, 1992
    Assignee: International Genetic Engineering, Inc.
    Inventors: Jiunu S. Lai, Jar-How Lee, James E. Callaway