Patents by Inventor Denis H. Burges

Denis H. Burges 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).

  • Preparation of strains of Bacillus thuringiensis having an improved activity against certain lepidopterous pests and novel strain produced thereby
    Patent number: 5063055
    Abstract: The invention relates to a strain of Bacillus thuringiensis, GC 91, a sample of which has been deposited under the accession number NCTC 118921, or a derivative or mutant thereof having entomocidal activity against lepidopterous pests. The invention also relates to a process for producing a strain of Bacillus thuringiensis having improved entomocidal properties by combining into a single strain by plasmid transfer the different entomocidal properties of two respective starting strains. The new strains thus produced are useful in entomocidol compositions.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: November 5, 1991
    Assignee: Agricultural Genetics Company, Limited
    Inventors: Denis H. Burges, Paul Jarrett
  • Preparation of strains of Bacillus thuringiensis having an improved activity against certain lepidopterous pests and novel strain produced thereby
    Patent number: 4935353
    Abstract: The invention relates to a strain of Bacillus thuringiensis, GC 91, a sample of which has been deposited under the accession number NCTC 11821, or a derivative or mutant thereof having entomocidal activity against lepidopterous pests. The invention also relates to a process for producing a strain of Bacillus thuringiensis having improved entomocidal properties by combining into a single strain by plasmid transfer the different entomocidal properties of two respective starting strains. The new strains thus produced are useful in entomocidal compositions.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: June 19, 1990
    Assignee: Agricultural Genetics Company, Limited
    Inventors: Denis H. Burges, Paul Jarrett