Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7407919 | Sulfonate detergent system for improved fuel economy | Melody A. Wilk, Brent R. Dohner, Jack C. Kelley | 2008-08-05 |
| 6823822 | Process for reducing engine wear in the operation of an internal combustion engine | David Duncan, Deborah Langer, Mayur Shah | 2004-11-30 |
| 6748905 | Process for reducing engine wear in the operation of an internal combustion engine | David Duncan, Deborah Langer, Mayur Shah | 2004-06-15 |
| 4941984 | Lubricating oil compositions and methods for lubricating gasoline-fueled and/or alcohol-fueled, spark-ignited engines | William B. Chamberlin, III | 1990-07-17 |