Patents by Inventor Pierre C. Loosen

Pierre C. Loosen 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).

  • Method for preparing an enzymatic hydrolysate
    Patent number: 5356637
    Abstract: An enzymatic hydrolysate having a high di- and tripeptide content is prepared by subjecting to enzymatic proteolysis a protein mixture preliminarily prepared by means of a thermal treatment. The hydrolysate having a high di- and tripeptide content is extracted by liquid-solid separation, followed by ultrafiltration. The hydrolysate is then subjected to a sterilization and drying operation.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: October 18, 1994
    Assignee: Tessenderlo Chemie N.V.
    Inventors: Pierre C. Loosen, Philippe R. Bressollier, Raymond A. Julien, Claude H. Pejoan, Bernard G. Verneuil
  • Process for the alpha-monoalkylation of arylacetonitriles, arylacetoesters and arylacetic acids
    Patent number: 5278333
    Abstract: A process for the .alpha.-monoalkylation of arylacetonitriles, arylacetoesters and arylacetic acids with dialkyl carbonates in liquid phase, in the presence of bases at temperatures ranging from about 100.degree. C. to about 270.degree. C.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: January 11, 1994
    Assignee: Tessenderlo Chemie N.V.
    Inventors: Pierre C. Loosen, Pietro Tundo, Maurizio Selva