Patents by Inventor Peter F. Plank

Peter F. Plank 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).

  • Accelerated stability test
    Patent number: 6653093
    Abstract: Enzyme granulates contain besides the enzyme water-soluble and water-insoluble fillers, binders and if required other additives for granulates. In order to stabilize the enzyme, an alkaline or earth alkaline metal formiate is added, as well as reducing sugar, if required. These enzyme granulates may contain all usual enzymes for washing and cleaning purposes, in particular alkaline proteases. A process for preparing these enzyme granulates, as well as their use in powdery washing product compositions are also disclosed.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: November 25, 2003
    Assignee: Genencor International, Inc.
    Inventors: Peter F. Plank, Thomas P Graycar, Matthew J. Flynn
  • Moldable energy absorbing rigid polyurethane foams
    Patent number: 4866102
    Abstract: Moldable energy absorbing rigid polyurethane foams are prepared by reacting a polyoxyalkylene polyether polyol containing therein a graft polymer dispersion, an alkylene oxide adduct of an aromatic amine in the presence of a crosslinking agent with an organic polyisocyanate. Alternatively, the aromatic amine may be replaced with an alkylene oxide adduct of pentaerythritol, ethylenediamine, .alpha.-methylglucoside, sorbitol and sucrose. The products are useful in various automobile body parts.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: September 12, 1989
    Inventors: Edward R. Pray, John R. Stoll, Peter F. Plank