Patents by Inventor Herman Doerge

Herman Doerge 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).

  • Low K-factor rigid foam systems
    Publication number: 20050148677
    Abstract: The present invention provides rigid polyurethane foams prepared by mixing an isocyanate with a polyol component containing an aromatic amine-initiated polyether polyol, an aromatic polyester polyol and optionally, a sucrose-based polyether polyol. The inventive foams have good properties as indicated by an initial k-factor at 35° F. of from about 0.115 to about 0.120 BTU-in./hr.ft2° F. and may find use as insulation materials in the construction and refrigeration industries.
    Type: Application
    Filed: December 30, 2003
    Publication date: July 7, 2005
    Inventors: Kevin Elsken, Steven Schilling, Herman Doerge