Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9969950 | Lubricating oil compositions containing sterically hindered amines as ashless TBN sourcces | Tushar K. Bera, Joseph P. Hartley, Guifeng Li, Christina Gulacsy | 2018-05-15 |
| 9145530 | Lubricating oil compositions containing sterically hindered amines as ashless TBN sources | Tushar K. Bera, Joseph P. Hartley, Guifeng Li, Christina Gulacsy | 2015-09-29 |