Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5071949 | Process for preparation of polyphenylene-sulfide resins in the absence of specific polymerization assistants | Yoshiaki Nakamura, Kazuyoshi Nagaki, Kazuhiro Kawamata | 1991-12-10 |