Patents by Inventor Peter J. H. Peters

Peter J. H. Peters 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).

  • Optically active substituted butyramide, and process for the optical separation of substituted butyramide
    Patent number: 4812403
    Abstract: Process for preparing D-2-amino-2,3-dimethylbutyramide and/or L-2-amino-2,3-dimethylbutyric acid, wherein an aqueous solution of DL-2-amino-2,3-dimethylbutyramide is contacted with a preparation containing an aminoacyl amidase which has been obtained from a culture of Mycobacterium neoaurum and in that subsequently D-2-amino-2,3-dimethylbutyramide and/or L-2-amino-2,3-dimethyl-butyric acid is (are) recovered from the resulting hydrolysis mixture. The compound D-2-amino-2,3-dimethylbutyramide is novel.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: March 14, 1989
    Assignee: Stamicarbon B.V.
    Inventors: Wilhelmus H. J. Boesten, Peter J. H. Peters
  • Preparation and immobilization of inulinase
    Patent number: 4397949
    Abstract: Enzyme preparations are obtained from Aspergillus phoenicis having high inulinase activity, a very low Michaelis constant, thermal stability, optimum inulinase activity across a wide pH range, and little sensitivity to heavy metal ion inhibition. The enzyme may be immobilized on an organic macroporous polymer or in an alginate gel.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: August 9, 1983
    Assignee: Stamicarbon, B.V.
    Inventors: Peter J. H. Peters, Pieter L. Kerkhoofs