Patents by Inventor Larry R. Steenson

Larry R. Steenson 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).

  • PTR2030, a conjugal plasmid and derivatives thereof that confer phage resistance to group N streptococci
    Patent number: 5139950
    Abstract: The present invention relates to the plasmid pTR2030 and derivatives thereof which confer phage resistance to group N streptococci. The invention further relates to microorganisms containing pTR2030 or a derivative thereof and to starter cultures containing the microorganisms.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: August 18, 1992
    Assignee: North Carolina State University
    Inventors: Todd R. Klaenhammer, Rosemary B. Sanozky, Larry R. Steenson
  • pTR2030, a conjugal plasmid and derivatives thereof that confer phage reisistance to group N streptococci
    Patent number: 4931396
    Abstract: The present invention relates to the plasmid pTR2030 and derivatives thereof which confer phage resistance to group N streptococci. The invention further relates to microorganisms containing pTR2030 or a derivative thereof and to starter cultures containing the microorganisms.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: June 5, 1990
    Assignee: North Carolina State University
    Inventors: Todd R. Klaenhammer, Rosemary B. Sanozky, Larry R. Steenson