Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10443013 | Viscosity index improver, method for producing the same and lubricating oil composition | Tadayoshi Ugamura, Keiko Izumi | 2019-10-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10443013 | Viscosity index improver, method for producing the same and lubricating oil composition | Tadayoshi Ugamura, Keiko Izumi | 2019-10-15 |