Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802892 | Fuel oil additive and fuel oil having improved flowability | Takeo Shimada, Tsutomu Isaka, Noriyuki Okada, Iwao Ishino | 1989-02-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802892 | Fuel oil additive and fuel oil having improved flowability | Takeo Shimada, Tsutomu Isaka, Noriyuki Okada, Iwao Ishino | 1989-02-07 |