Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9512369 | Process for removing color bodies from used oil | James Joseph Noble | 2016-12-06 |
| 5423991 | Method to recover petroleum from slicks and spills | Edwin H. Zimmerman | 1995-06-13 |
| 5262048 | Apparatus to recover petroleum from slicks and spills | Edwin H. Zimmerman | 1993-11-16 |