Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31341 | Polytetrafluoroethylene fine powder and process for producing the same | Shun Koizumi, Shigeru Ichiba, Tetsuo Shimizu, Chuzo Okuno, Katsutoshi Yamamoto | 1983-08-09 |