Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5968354 | Apparatus for recovering oil-based liquid | — | 1999-10-19 |
| 5846432 | Method for lifting oil-based liquid | — | 1998-12-08 |
| 5705076 | Method for filtering contaminants from a mixture | — | 1998-01-06 |
| 5643449 | Apparatus for lifting oil-based liquid | — | 1997-07-01 |
| 5403478 | Oil-based fluid absorbent article | — | 1995-04-04 |
| 5339467 | Hang-type earmuff and method of manufacture | — | 1994-08-23 |
| 5229006 | Method of recovering oil-based fluid and apparatus | — | 1993-07-20 |
| 5227072 | Method of recovering oil-based fluid | — | 1993-07-13 |