Patents by Inventor Jacques Pourquie

Jacques Pourquie 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 producing cellulolytic enzymes
    Patent number: 4762788
    Abstract: This invention concerns a process of producing cellulolytic enzymes by fermentation with the Trichoderma reesei fungus.This process includes two steps:(a) a first step of subjecting to aerobian fermentation a culture medium comprising a strain of Trichoderma reesei, nutrition compounds and a small quantity of cellulose and sugar,(b) a second step of contining the aerobian fermentation by adding soluble sugar at a speed such that the sugar concentration in the fermentation zone remains under 0.3% by weight.The cellulolytic enzymes obtained are used in the enzymatic hydrolysis of a lignocellulosic biomass.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: August 9, 1988
    Assignee: Institut Francais du Petrole
    Inventors: Michel Warzywoda, Veronique Ferre, Jacques Pourquie