Patents by Inventor David Ryan Edwards

David Ryan Edwards 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).

  • Phosphorus anti-wear compounds for use in lubricant compositions
    Patent number: 9090850
    Abstract: The present disclosure describes anti-wear compounds that improve the pack stability of a lubricant composition and are resistant to in situ degradation while maintaining effective anti-wear performance.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: July 28, 2015
    Assignee: Afton Chemical Corporation
    Inventors: David Ryan Edwards, Carey Garber Lehner