Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668187 | Process for the preparation of rigid polyurethane foam | Shinichi Asako | 1997-09-16 |
HU
Hajime Uchida
Nippon Nyukazai Co.: 1 patents #1 of 2Top 50%
Overall (1997): #144,330 of 185,788Top 80%
1
Patents 1997