Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822898 | Ascorbic acid or erythorbic acid derivatives | Yukihisa Takisawa | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822898 | Ascorbic acid or erythorbic acid derivatives | Yukihisa Takisawa | 1989-04-18 |