Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904427 | Process of preparing inorganic light weight foam | — | 1990-02-27 |
| 4477599 | Method of preparing a low density, nonflammable polyvinyl foam composition | Takayuki Otsu | 1984-10-16 |