Ruff; Charles James
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ruff; Charles James.The latest application filed is for "high efficiency engine oil compositions".
- Ruff; Charles James - Houston TX
| Patent | Date |
|---|---|
| High efficiency engine oil compositions Grant 9,234,152 - Martin , et al. January 12, 2 | 2016-01-12 |
| Lubricating compositions Grant 9,234,151 - Martin , et al. January 12, 2 | 2016-01-12 |
| Low viscosity engine oil compositions Grant 9,234,150 - Martin , et al. January 12, 2 | 2016-01-12 |
| Low Viscosity Engine Oil Compositions App 20130090273 - Martin; Richard Wayne ; et al. | 2013-04-11 |
| High Efficiency Engine Oil Compositions App 20130090278 - Martin; Richard Wayne ; et al. | 2013-04-11 |
| Lubricating Compositions App 20130090277 - Martin; Richard Wayne ; et al. | 2013-04-11 |
| Polymerization process Grant 6,114,477 - Merrill , et al. September 5, 2 | 2000-09-05 |
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