Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6908572 | Mixing and dispersion of nanotubes by gas or vapor expansion | Rodney Andrews, Bouchra Safadi | 2005-06-21 |
| 6852224 | Carbon fiber filters | Mario Elmen Tremblay, Steve G. Fishter, Dimitris Ioannis Collias, Marit Jagtoyen | 2005-02-08 |
| 6702875 | Carbon fiber filters for air filtration | Marit Jagtoyen | 2004-03-09 |
| 6057262 | Activated carbon and process for making same | Marit Jagtoyen | 2000-05-02 |
| 5248413 | Process for removing sulfur and producing enhanced quality and environmentally acceptable products for energy production from coal | John M. Stencel | 1993-09-28 |
| 4604189 | Hydrocracking of heavy feeds with dispersed dual function catalyst | Philip Varghese | 1986-08-05 |
| 4447310 | Production of distillates by the integration of supercritical extraction and gasification through methanol to gasoline | Darrell D. Whitehurst | 1984-05-08 |
| 4440622 | Integration of short-contact-time liquefaction and critical solvent deashing with gasification through methanol-to-gasoline | Philip Varghese, Darrell D. Whitehurst | 1984-04-03 |
| 4437972 | Process for co-processing coal and a paraffinic material | Philip Varghese | 1984-03-20 |
| 4404177 | Method for producing graphite crystals | Darrell D. Whitehurst | 1983-09-13 |
| 4395324 | Thermal cracking with hydrogen donor diluent | Philip Varghese, Darrell D. Whitehurst | 1983-07-26 |
| 4354922 | Processing of heavy hydrocarbon oils | Philip Varghese, Darrell D. Whitehurst | 1982-10-19 |
| 4334977 | Method for the generation of recycle solvents in coal liquefaction | Philip Varghese, Darrell D. Whitehurst | 1982-06-15 |
| 4292164 | Liquefaction of carbonaceous material with hydrogen and naphtha-extracted recycle solvent without heterogeneous catalyst | Darrell D. Whitehurst | 1981-09-29 |
| 4292168 | Upgrading heavy oils by non-catalytic treatment with hydrogen and hydrogen transfer solvent | Thomas O. Mitchell, Darrell D. Whitehurst | 1981-09-29 |