Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351860 | Polyaryl ether sulfone semipermeable membrane and process for producing same | goichi Yoshida, Yoshiro Ii | 1982-09-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351860 | Polyaryl ether sulfone semipermeable membrane and process for producing same | goichi Yoshida, Yoshiro Ii | 1982-09-28 |