Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10988701 | Lubricating composition containing an oxyalkylated hydrocarbyl phenol | Yanshi Zhang, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson | 2021-04-27 |
| 10975323 | Sulfurized catecholate detergents for lubricating compositions | Kamalakumari K. Salem, Ewan E. Delbridge, David J. Moreton, Adam Cox, W. Preston Barnes +2 more | 2021-04-13 |