Patents by Inventor Alan Mellors

Alan Mellors 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).

  • Pastuerella haemolytica glycoprotease gene and the purified enzyme
    Patent number: 5543312
    Abstract: A purified DNA molecule encoding a glycoprotease from Pasteurella haemolytica is disclosed. The DNA comprises a sequence of approximately 975 base pairs coding for a glycoprotease having a molecular weight of approximately 35.2 kD. The glycoprotease is specific for cleaving O-glycosylated carbohydrate portions from O-glycoproteins. The glycoprotease has a major cleavage site in glycophorin A between Arg31 and Asp32.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: August 6, 1996
    Assignee: University of Guelph
    Inventors: Alan Mellors, Reggie Y. C. Lo, Khalid M. Abdullah
  • Cell surface modification using a novel glycoproteinase of pasteurella haemolytica
    Patent number: 4906571
    Abstract: A glycoproteinase derived from the culture of Pasteurella haemolytica cleaves carbohydrate antigen markers from glycoproteins forming an integral part of plant and mammal cell membrane without general enzyme digestion of other cell protein. The glycoproteinase is separated from the media containing nutrients which induce Pasteurella haemolytica to produce the glycoproteinase released into the media.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: March 6, 1990
    Assignee: University of Guelph
    Inventors: Alan Mellors, Alphonsus E. Udoh