Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904367 | Removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range | Douglas G. Ryan | 1990-02-27 |
| 4820400 | Process for removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range (OP-3379) | Douglas G. Ryan, Rudolph R. Savory | 1989-04-11 |