Issued Patents All Time
Showing 25 most recent of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865358 | Soot dispersant | Jun Hua, Yantao Zhu, Xiao Jun Wei, Rolfe J. Hartley, Yuan Gao | 2020-12-15 |
| 10487287 | Optimized composition for engine deposits and seals | Rolfe J. Hartley, Yantao Zhu | 2019-11-26 |
| 9518244 | Lubricant composition comprising a bi-modal side-chain distribution LOFI | Doyle H. Boese, David J. Martella | 2016-12-13 |
| 7300910 | Lubricating oil composition | Antonio Gutierrez, Nancy Z. Diggs, Fredrick W. Girshick, David J. Martella, Mark G. Stevens +1 more | 2007-11-27 |
| 6852679 | Lubricating oil composition | Rolfe J. Hartley, Malcolm Waddoups, Roger Glyde, Robert Robson | 2005-02-08 |
| 6750183 | Lubricating oil composition | Antonio Gutierrez, Nancy Z. Diggs, Fredrick Girschick, David J. Martella, Mark G. Stevens +1 more | 2004-06-15 |
| 6583247 | Process for producing free radical polymerized copolymers | Ariel Alvarino, David J. Martella, John V. Redpath, James M. Gardiner, Steven McKeown +1 more | 2003-06-24 |
| 6495496 | Hydroxy aromatic mannich base condensation products and the use thereof as soot dispersants in lubricating oil compositions | Antonio Gutierrez, Mark G. Stevens, Robert A. Kleist | 2002-12-17 |
| 6475963 | Carboxylate-vinyl ester copolymer blend compositions for lubricating oil flow improvement | David J. Martella | 2002-11-05 |
| 6121209 | Synergistic antioxidant systems | Raymond F. Watts | 2000-09-19 |
| 6077455 | Automatic transmission fluid of improved viscometric properties | Raymond F. Watts, Christopher Cornish | 2000-06-20 |
| 6028210 | Process for making sulfur boron antiwear agents for lubricating compositions | Raymond F. Watts, Jack Ryer, Roger K. Nibert, James S. Puckace | 2000-02-22 |
| 6004910 | Crankcase lubricant for modern heavy duty diesel and gasoline fueled engines | Arunas T. Lapinas, Edward Francis Outten, Andrew Ritchie, Malcolm Waddoups | 1999-12-21 |
| 5919740 | Alkylthiophosphate salts for lubricating oils | Alexander B. Boffa | 1999-07-06 |
| 5885943 | Sulfur boron antiwear agents for lubricating compositions | Raymond F. Watts, Jack Ryer, Roger K. Nibert, James S. Puckace | 1999-03-23 |
| 5872082 | Method for increasing the static coefficient of friction in oleaginous compositions | Raymond F. Watts, Antonio Gutierrez, Roger K. Nibert, Jack Ryer | 1999-02-16 |
| 5866519 | Automatic transmission fluids of improved viscometric properties | Raymond F. Watts | 1999-02-02 |
| 5840662 | Lubricating oils of improved friction durability | Roger K. Nibert, Raymond F. Watts | 1998-11-24 |
| 5811377 | Low molecular weight basic nitrogen-containing reaction products as enhanced phosphorus/boron carriers in lubrication oils | Raymond F. Watts, Michael G. Romanelli, Maryann Devine, Jack Ryer | 1998-09-22 |
| 5773392 | Oil soluble complexes of phosphorus-containing acids useful as lubricating oil additives | Michael G. Romanelli, Jack Ryer, Raymond F. Watts | 1998-06-30 |
| 5750476 | Power transmitting fluids with improved anti-shudder durability | Roger K. Nibert, Maryann Devine, Manoj Tandon, Raymond F. Watts | 1998-05-12 |
| 5646099 | Automatic transmission fluids of improved viscometric properties | Raymond F. Watts | 1997-07-08 |
| 5641733 | Automatic transmission fluids of improved viscometric properties | Christopher Cornish, Raymond F. Watts | 1997-06-24 |
| 5635460 | Increasing the friction durability of power transmission fluids through the use of oil soluble competing additives | Roger K. Nibert, Jack Ryer, Raymond F. Watts | 1997-06-03 |
| 5601747 | Increasing the friction durability of power transmission fluids through the use of oil soluble competing additives (PTF-054C) | Roger K. Nibert, Jack Ryer, Raymond F. Watts | 1997-02-11 |