Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284994 | Injection of antifoulants into thermal cracking reactors | K. James Sasaki, Larry E. Reed | 1994-02-08 |
| 5202521 | Monoolefin/paraffin separation by selective absorption | Robert L. Hair | 1993-04-13 |
| 5188709 | Crude oil processing apparatus for heavy oil extraction | Richard D. Kuerston | 1993-02-23 |
| 5160414 | Extractive distillation of alcohol/ether/hydrocarbon mixtures | Fu-Ming Lee, Robert L. Hair | 1992-11-03 |
| 5157203 | Separation of organic sulfides from olefins | Ted H. Cymbaluk | 1992-10-20 |
| 5154802 | Separation of unsaturated hydrocarbons by extractive distillation | Fu-Ming Lee | 1992-10-13 |
| 5151161 | Separation of olefinic hydrocarbons by extractive distillation | Fu-Ming Lee | 1992-09-29 |
| 5145562 | Extractive distillation of mixtures containing aromatic and olefinic hydrocarbons | Fu-Ming Lee | 1992-09-08 |
| 5135620 | Separation of ethylbenzene from xylenes by extractive distillation | — | 1992-08-04 |
| 5135617 | Separation of aromatic from olefinic hydrocarbons by extractive distillation | Michael S. Matson | 1992-08-04 |
| 5100515 | Separation of alkenes from close-boiling alkanes | Fu-Ming Lee | 1992-03-31 |
| 5085741 | Extractive distillation of low boiling alkene/alkane mixtures | Anthony Rouse, Fu-Ming Lee | 1992-02-04 |
| 5085740 | Separation of alkenes from alkanes | Fu-Ming Lee | 1992-02-04 |
| 5069757 | Separation of aromatics from alkanes | — | 1991-12-03 |
| 5068011 | Separation of monoolefins from paraffins | Fu-Ming Lee | 1991-11-26 |
| 5055162 | Extractive distillation of cycloalkane/alkane feeds | Fu-Ming Lee, Michael S. Matson | 1991-10-08 |
| 5032232 | Extractive distillation of hydrocarbon mixtures | Fu-Ming Lee, Marvin M. Johnson | 1991-07-16 |
| 5016648 | Limb protective covering | Jack M. Grinwis | 1991-05-21 |
| 4992162 | Method and apparatus for heavy oil extraction | Richard D. Kuerston | 1991-02-12 |
| 4977101 | Monolithic pressure sensitive integrated circuit | Douglas J. Yoder, Paul E. Stevenson, Donald L. Hornback, Ronald K. Leisure | 1990-12-11 |
| 4954224 | Extractive distillation of hydrocarbon feeds employing mixed solvent | Fu-Ming Lee | 1990-09-04 |
| 4948472 | Extractive distillation of hydrocarbon mixtures employing mixed solvent | Fu-Ming Lee | 1990-08-14 |
| 4921581 | Extractive distillation of hydrocarbons employing solvent mixture | Fu-Ming Lee | 1990-05-01 |
| 4885621 | Monolithic pressure sensitive integrated circuit | Douglas J. Yoder, Paul E. Stevenson, Donald L. Hornback, Ronald K. Leisure | 1989-12-05 |
| 4885080 | Process for demetallizing and desulfurizing heavy crude oil | Robert J. Hogan, Daniel Coombs, Simon G. Kukes | 1989-12-05 |