Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6138455 | Closely temperature coupled mixing improving thermodynamic efficiency | — | 2000-10-31 |
| 5806339 | Multiple effect and distributive separation of isobutane and normal butane | — | 1998-09-15 |
| 5791161 | Low pressure deethanizer | — | 1998-08-11 |
| 5755115 | Close-coupling of interreboiling to recovered heat | — | 1998-05-26 |
| 5755933 | Partitioned distillation column | Thomas P. Ognisty | 1998-05-26 |
| 5746066 | Pre-fractionation of cracked gas or olefins fractionation by one or two mixed refrigerant loops and cooling water | — | 1998-05-05 |
| 5709780 | Partitioned distillation column | Thomas P. Ognisty | 1998-01-20 |
| 5680775 | Demixing sidedraws for distillation columns | — | 1997-10-28 |
| 5673571 | Deethanizer/depropanizer sequences with thermal and thermo-mechanical coupling and component distribution | — | 1997-10-07 |
| 5675054 | Low cost thermal coupling in ethylene recovery | Hazem Haddad | 1997-10-07 |
| 5626034 | Mixed refrigerants in ethylene recovery | Hazem Haddad | 1997-05-06 |
| 5435436 | Thermomechanically integrated distillation of close-boiling light hydrocarbons | Dominic G. Greene | 1995-07-25 |
| 5335504 | Carbon dioxide recovery process | Charles A. Durr, Robert L. McKee | 1994-08-09 |
| 4914257 | Method and apparatus for recovering high purity toluene, hexane, titanium tetrachloride and tetrahydrofuran from mixtures | Steven A. Cohen, James H. Lee | 1990-04-03 |