Patents by Inventor Lee A. Brugger

Lee A. Brugger 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).

  • Clear high-performance multifunction VI improvers
    Patent number: 4816172
    Abstract: This invention is a method of producing a clear, high-performance dispersant/antioxidant VII. The method comprising admixing a polar modifier to a VI improver during preparation process or to final product at a sufficiently high temperature to produce the desired clear, high performance VI improver.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: March 28, 1989
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Larry D. Grina, Lee A. Brugger