Patents by Inventor Geoffrey W. Broadhurst

Geoffrey W. Broadhurst 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).

  • Stabilizers for the prevention of gum formation in gasoline
    Patent number: 5711767
    Abstract: The use of nitroxide compounds alone or in combination with aromatic amines, such as substituted phenylenediamines, or phenolic antioxidants provides an effective way to prevent oxidative degradation and gum formation in gasolines, especially unstable coker and pyrolysis gasolines.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: January 27, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Matthew E. Gande, Paul A. Odorisio, Ramraj Venkatadri, Geoffrey W. Broadhurst