Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4194057 | Polymer composition viscosity index improver additive and lubricating oil containing the additive | John Crawford | 1980-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4194057 | Polymer composition viscosity index improver additive and lubricating oil containing the additive | John Crawford | 1980-03-18 |