Patents by Inventor Charles Colson

Charles Colson 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).

  • Mutant microorganisms containing recombinant DNA and their use in the production of amylases
    Patent number: 4806426
    Abstract: Recombinant DNA containing amylase-coding genes is prepared by cleaving DNA from various donor microorganisms and combining portions of the DNA with the plasmid pUB110. Strains of E. coli or B. subtilis containing the recombinant DNA are grown in fermentation media to produce the amylase enzymes.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: February 21, 1989
    Assignee: CPC International Inc.
    Inventors: Charles A. Colson, Philippe Lejeune, Corinne Walon, Karine Willemot
  • Genes conferring on yeasts a resistance to herbicides
    Patent number: 4745065
    Abstract: Disclosed is an autoreplicative plasmid containing DNA which encodes herbicide resistance, such that the plasmid is capable of transforming a yeast cell to become resistant to one or more organic herbicide growth inhibitors. Also disclosed is a process for the selective culture of yeasts transformed by the plasmid.
    Type: Grant
    Filed: May 8, 1984
    Date of Patent: May 17, 1988
    Assignee: Labofina, S.A.
    Inventors: Jean M. A. G. Delcour, Anne-Marie J. C. G. Colson-Corbisier, Annie F. J. De Baetselier-van Broekhoven, Charles Colson
  • Genetically engineered microorganisms for massive production of amylolytic enzymes and process for preparing same
    Patent number: 4469791
    Abstract: Genetically engineered microorganisms are provided which contain recombinant DNA with an amylase coding gene. Improved yields of amylase enzymes are obtained by cultivating these microorganisms.
    Type: Grant
    Filed: February 13, 1981
    Date of Patent: September 4, 1984
    Assignee: CPC International Inc.
    Inventors: Charles A. Colson, Pierre E. Cornelis, Colette S. Digneffe, Corinne Walon