Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5178747 | Non-carcinogenic bright stock extracts and deasphalted oils | Gary R. Blackburn, Carl R. Mackerer, Nigel Searle, Edward N. Ladov | 1993-01-12 |
| 5034119 | Non-carcinogenic bright stock extracts and deasphalted oils | Gary R. Blackburn, Carl R. Mackerer, Nigel Searle, Edward N. Ladov | 1991-07-23 |