Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11898119 | Lubricating oil compositions with resistance to engine deposit and varnish formation | Kenneth Garelick, Mark T. Devlin | 2024-02-13 |
| 11851628 | Lubricating oil composition having resistance to engine deposits | Mark T. Devlin, Kenneth Garelick | 2023-12-26 |
| 11788027 | Engine oil formulation with improved sequence VIII performance | Kenneth Garelick, Mark T. Devlin | 2023-10-17 |
| 11773343 | Engine oil formulation with improved Sequence VIII performance | Kenneth Garelick, Mark T. Devlin | 2023-10-03 |
| 8977421 | System and method for determining a lubricant discard interval | Robert T. Dittmeier, Dewey P. Szemenyei | 2015-03-10 |
| 8965625 | System and method for extending a lubricant discard interval | Robert T. Dittmeier, Dewey P. Szemenyei | 2015-02-24 |
| 8709985 | Lubricant composition | Mark T. Devlin, John T. Loper, Roger M. Sheets | 2014-04-29 |