Patents by Inventor Robert C. Shiffer

Robert C. Shiffer 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).

  • Adhered roof structure
    Patent number: 7622187
    Abstract: A membrane roof includes a supporting substrate covered with a roofing membrane. The roofing membrane is adhered to the substrate utilizing an adhesive such as a foam polyurethane adhesive. The adhesive has an elongation of at least 100% and a modulus no greater than 100 psi.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: November 24, 2009
    Assignee: Carlisle Intangible Company
    Inventors: Steven R. Clarke, Michael J. Scanish, Robert C. Shiffer
  • ADHERED ROOF STRUCTURE
    Publication number: 20080038548
    Abstract: A membrane roof includes a supporting substrate covered with a roofing membrane. The roofing membrane is adhered to the substrate utilizing an adhesive such as a foam polyurethane adhesive. The adhesive has an elongation of at least 100% and a modulus no greater than 100 psi.
    Type: Application
    Filed: August 11, 2006
    Publication date: February 14, 2008
    Inventors: Steven R. Clarke, Michael J. Scanish, Robert C. Shiffer