Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6191081 | Long life medium and high ash oils with enhanced nitration resistance | Stanley James Cartwright | 2001-02-20 |
| 6140281 | Long life lubricating oil using detergent mixture | Alan G. Blahey, Stanley James Cartwright | 2000-10-31 |
| 6140282 | Long life lubricating oil composition using particular detergent mixture | Stanley James Cartwright | 2000-10-31 |
| 5726133 | Low ash natural gas engine oil and additive system | Alan G. Blahey | 1998-03-10 |