Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5161914 | Slotted extraction trench remediation system | Phillip Rahn | 1992-11-10 |
| 4546169 | Process for preparation of polyester polyols utilizing polyalkylene terephthalate | Thurston R. Friar, Berwyn Green | 1985-10-08 |