Patents by Inventor David Bobee

David Bobee 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).

  • Roofing felt composition
    Patent number: 8003717
    Abstract: The invention is directed to a novel bitumen composition comprising a paraffin wax, wherein the wax has a congealing point of between 85 and 120° C. and a PEN at 43° C., expressed in 0.1 mm, as determined by IP 376 of more than 5.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: August 23, 2011
    Assignee: Shell Oil Company
    Inventors: David Bobee, Alain Marcel Bernard Seive, Anne Claire Rebuffatti
  • Roofing Felt Composition
    Publication number: 20080255277
    Abstract: The invention is directed to a novel bitumen composition comprising a paraffin wax, wherein the wax has a congealing point of between 85 and 120° C. and a PEN at 43° C., expressed in 0.1 mm, as determined by IP 376 of more than 5.
    Type: Application
    Filed: November 9, 2006
    Publication date: October 16, 2008
    Inventors: David Bobee, Alain Marcel Bernard Seive, Anne Claire Rebuffatti
  • BITUMEN COMPOSITION
    Publication number: 20070199476
    Abstract: A novel bitumen composition comprising a paraffin wax, wherein the wax has a congealing point of between 85 and 120° C. and a PEN at 43° C., expressed in 0.1 mm, as determined by IP 376 of more than 5.
    Type: Application
    Filed: November 10, 2006
    Publication date: August 30, 2007
    Inventors: David Bobee, Sylvie Lebigre, Alain Seive