Patents by Inventor Jean M. A. G. Delcour

Jean M. A. G. Delcour 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).

  • Process for recovering polypeptides localized in the periplasmic space of yeast without breaking the cell wall by using an non-ionic detergent and a neutral salt
    Patent number: 5124256
    Abstract: The invention relates to a process for releasing into aqueous medium polypeptides produced by yeasts and localized at least partially within the periplasmic space thereof without breaking the yeast cell. The process involves treating the yeasts in aqueous medium with a neutral water-soluble mineral salt and a non-ionic water-soluble polyethoxylated alkylphenol surfactant having an HLB of between 8 and 15.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: June 23, 1992
    Assignee: Labofina, S.A.
    Inventors: Jacques Crahay, Jean M. A. G. Delcour, Jacques D. V. Hanotier
  • 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