Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355159 | Dissolution and stabilization of thermally converted bitumen | Ronald D. Myers, Mainak Ghosh, Michelle A. Young, Tapan Chakrabarty, Irwin A. Wiehe | 2002-03-12 |
| 5795464 | Conversion of the organic component from tar sands to lower boiling products | Peter S. Maa, Roby Bearden, Jr. | 1998-08-18 |
| 5236577 | Process for separation of hydrocarbon from tar sands froth | Robert N. Tipman | 1993-08-17 |
| 4462895 | Combination visbreaking and hydrorefining with recycle of hydrorefined bottoms | Omer Biceroglu | 1984-07-31 |
| 4461698 | Solvent dewaxing waxy hydrocarbon distillate oils using a combination wax-naphthalene condensate and poly-dialkylfumarate/vinyl acetate copolymer dewaxing aid | Cedric Briens | 1984-07-24 |
| 4451353 | Solvent dewaxing waxy hydrocarbon distillates using a combination poly acrylate polymer and polymethacrylate polymer dewaxing aid | Cedric Briens, Patrick C. Ewener | 1984-05-29 |
| 4406771 | Solvent dewaxing waxy hydrocarbon oil distillates using a combination poly di-alkyl fumarate-vinyl acetate copolymer having pendent carbon side chain length of predominantly C.sub.22 and polyalkyl(meth-)acrylate polymer dewaxing aid | Cedric Briens | 1983-09-27 |