Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11155764 | Lubricants for use in boosted engines | Kongsheng Yang, Kristin Fletcher, Jeremy Styer | 2021-10-26 |
| 10550349 | Lubricants with titanium and/or tungsten and their use for improving low speed pre-ignition | Kristin Fletcher, Kongsheng Yang, Jeremy Styer | 2020-02-04 |
| 10421922 | Lubricants with magnesium and their use for improving low speed pre-ignition | Kristin Fletcher, Kongsheng Yang, Jeremy Styer | 2019-09-24 |
| 10377963 | Lubricants for use in boosted engines | Kongsheng Yang, Kristin Fletcher, Jeremy Styer | 2019-08-13 |
| 10336959 | Lubricants with calcium-containing detergent and their use for improving low speed pre-ignition | Kristin Fletcher, Kongsheng Yang, Jeremy Styer | 2019-07-02 |
| 10323205 | Lubricant compositions for reducing timing chain stretch | Kristin Fletcher | 2019-06-18 |
| 10280383 | Lubricants with molybdenum and their use for improving low speed pre-ignition | Kristin Fletcher, Kongsheng Yang, Jeremy Styer | 2019-05-07 |
| 10214703 | Lubricants with zinc dialkyl dithiophosphate and their use in boosted internal combustion engines | Kristin Fletcher, Kongsheng Yang, Jeremy Styer | 2019-02-26 |
| 9663743 | Lubricating method and composition for reducing engine deposits | Paul G. Griffin, Ian Bell, John T. Loper, Gregory H. Guinther | 2017-05-30 |
| 9068135 | Lubricating oil composition and additive therefor having improved piston deposit control and emulsion stability | Kongsheng Yang | 2015-06-30 |
| 8084403 | Lubricant formulations and methods | Gregory H. Guinther | 2011-12-27 |
| 8034752 | Lubricating composition | Traci Freeman, Gregory Anderson | 2011-10-11 |
| 7897548 | Additives and lubricant formulations for improved antiwear properties | Mark T. Devlin | 2011-03-01 |
| 7879774 | Titanium-containing lubricating oil composition | John T. Loper, Carl K. Esche, Jr., Christopher Dudding, Peter Growcott, Anthony Fagan +2 more | 2011-02-01 |
| 7776800 | Titanium-containing lubricating oil composition | Gregory H. Guinther, Carl K. Esche, Jr. | 2010-08-17 |
| 7407918 | Lubricating oil compositions | Munmaya K. Mishra, Sanjay Srinivasan | 2008-08-05 |
| 6599865 | Effective antioxidant combination for oxidation and deposit control in crankcase lubricants | Carl K. Esche, Jr., Vincent J. Gatto | 2003-07-29 |
| 6096695 | Sulfurized phenolic antioxidant composition, method of preparing same, and petroleum products containing same | Vincent J. Gatto | 2000-08-01 |
| 5166439 | Composition containing a mannich base of a partially sulfurized hindered phenol mixture | Christian S. Harstick | 1992-11-24 |
| 5045089 | Fuel compositions containing phenolic antioxidants | Gregory P. Liesen | 1991-09-03 |
| 5026493 | Reduced ash content lubricants | David L. Wooton | 1991-06-25 |
| 5009802 | Phenolic antioxidant composition | Gregory P. Liesen | 1991-04-23 |
| 5004481 | Fuel compositions containing sulfur-bridged phenolic antioxidants | Gregory P. Liesen | 1991-04-02 |
| 4957643 | Lubricant compositions | — | 1990-09-18 |
| 4946610 | Sulfur-bridged phenolic antioxidants | Gregory P. Liesen | 1990-08-07 |