Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6534318 | Mass spectrometric multivariate analysis | Stilianos G. Roussis, Barbara Shannon, Olga Puzic | 2003-03-18 |
| 6258255 | Method for enhancing asphalt properties | Mary Josephine Gale, Lyle E. Moran, James D. Bell | 2001-07-10 |
| 5306681 | Method for recovery or maintaining the activity of hydroisomerization catalysts | James J. Schorfheide | 1994-04-26 |
| 5212128 | Method for recovering or maintaining the activity of hydroisomerization catalysts | James J. Schorfheide | 1993-05-18 |
| 5059299 | Method for isomerizing wax to lube base oils | Ian A. Cody, James D. Bell, Theodore H. West, William A. Wachter | 1991-10-22 |
| 4937399 | Method for isomerizing wax to lube base oils using a sized isomerization catalyst | William A. Wachter, Ian A. Cody, Glen P. Hamner | 1990-06-26 |
| 4673485 | Process for increasing deasphalted oil production from upgraded residua | Duncan J. Bristow, Lawrence J. Evers | 1987-06-16 |
| 4594142 | Dewaxing waxy hydrocarbon oils using di-alkyl fumarate-vinyl laurate copolymer dewaxing aids | Abraham R. DeKraker, Albert Rossi | 1986-06-10 |
| 4592832 | Process for increasing Bright Stock raffinate oil production | Duncan J. Bristow, Lawrence J. Evers | 1986-06-03 |
| 4522710 | Method for increasing deasphalted oil production | David H. Shaw, James D. Bushnell | 1985-06-11 |
| 4377467 | Solvent dewaxing waxy hydrocarbon oils using dewaxing aid | — | 1983-03-22 |
| 4203824 | Polyvinylpyrrolidone dewaxing aid for bright stocks | David H. Shaw | 1980-05-20 |