Patents by Inventor Beth Yoon

Beth Yoon 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).

  • Borated-epoxidized polybutenes as low-ash anti-wear additives for lubricants
    Publication number: 20050137096
    Abstract: An engine lubricant that is substantially free of zinc and phosphorous contains an antiwear additive comprising borated 1,2 epoxy mixed polybutenes having an average carbon number in the range of C20 to about C120.
    Type: Application
    Filed: September 28, 2004
    Publication date: June 23, 2005
    Inventors: Beth Yoon, Liehpao Farng, George Skic