Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436243 | Process for recovering N-vinyl-2-pyrrolidone | Yoshinari Yamaguchi, Hitoshi Yano, Yuuji Shimasaki | 2002-08-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436243 | Process for recovering N-vinyl-2-pyrrolidone | Yoshinari Yamaguchi, Hitoshi Yano, Yuuji Shimasaki | 2002-08-20 |