Patents Examined by Paul K. Hutzell
  • Vaccine containing a serine protease
    Patent number: 5885814
    Abstract: Disclosed is the invention relates to the use of serine protease having peptidyl peptidase activity in the formulation of vaccines for combating helminth parasites. The protease is derived from a fluke Fasciola hepatica.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: March 23, 1999
    Assignee: Mallinckrodt Veterinary, Inc.
    Inventors: John P. Dalton, Stuart J. Andrews