Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6293975 | Fuel composition | Raymond R. Ruth | 2001-09-25 |
| 6214236 | Process for breaking an emulsion | — | 2001-04-10 |
| 6056882 | Process of breaking a sludge emulsion with a ball mill followed by separation | — | 2000-05-02 |
| 5788721 | Fuel composition | Raymond R. Ruth | 1998-08-04 |
| 5443717 | Recycle of waste streams | Craig A. Koopersmith, Walter A. Carter | 1995-08-22 |
| 5439489 | Method and apparatus for producing a fuel composition | Raymond R. Ruth, Craig A. Koopersmith | 1995-08-08 |