Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5707573 | Method of preparing thermoplastic foams using a gaseous blowing agent | Subir K. Dey, David B. Todd | 1998-01-13 |
| 5372418 | Back mix drag-flow apparatus | David B. Todd | 1994-12-13 |