Patents by Inventor Helen R. Gorter

Helen R. Gorter 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).

  • Asphaltic composition
    Patent number: 4711672
    Abstract: An asphaltic composition having improved temperature susceptibility and a method of manufacturing the improved asphaltic composition are disclosed. The improvement is directed at the addition of a stabilizing agent selected from the group consisting of Group IA sulfates, Group IIB sulfates and mixtures thereof.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: December 8, 1987
    Assignee: Exxon Research and Engineering Company
    Inventors: Helen R. Gorter, Lyle E. Moran, Warren D. Robertson, Shaunalea Savard