Issued Patents All Time
Showing 25 most recent of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5719322 | Zeolitic capillary columns for gas chromatography | James R. Lansbarkis, Stephen T. Wilson | 1998-02-17 |
| 5225580 | Process for separating fatty acids and triglycerides | — | 1993-07-06 |
| 5177295 | Process for separating para-xylene from a C.sub.8 and C.sub.9 aromatic mixture | Anil R. Oroskar, Roberto E. Prada, James A. Johnson, Gary C. Anderson | 1993-01-05 |
| 5159131 | Zeolitic para-xylene separation with indan and indan derivatives as heavy desorbent | — | 1992-10-27 |
| 5149887 | Separation of alkyl-substituted phenolic isomers with barium-potassium exchanged zeolitic adsorbent | — | 1992-09-22 |
| 5118876 | Separation of dichlorophenol isomers with zeolite adsorbents | Kelly C. Issa | 1992-06-02 |
| 5107062 | Zeolitic para-xylene separation with tetralin derivatives as heavy desorbent | — | 1992-04-21 |
| 5102582 | Process for separating fatty acids and triglycerides | — | 1992-04-07 |
| 5057643 | Zeolitic para-xylene separation with tetralin derivatives as heavy desorbent | — | 1991-10-15 |
| 5019271 | Extractive chromatographic separation process for recovering 3,5-diethyltoluene | — | 1991-05-28 |
| 5012038 | Zeolitic para-xylene separation with diethyltoluene heavy desorbent | — | 1991-04-30 |
| 4992621 | Separation of coumarone from indene | — | 1991-02-12 |
| 4962273 | Purification of alpha naphthol-containing feedstock by adsorption | Steven P. Johnson | 1990-10-09 |
| 4956522 | Zeolitic para-ethyltoluene separation with tetralin heavy desorbent | — | 1990-09-11 |
| 4940830 | Rejective separation of para-xylene from xylene isomers and ethylbenzene with zeolites | Richard L. Fergin | 1990-07-10 |
| 4940548 | Chromatographic separation process for recovering individual diethyltoluene isomers | — | 1990-07-10 |
| 4922044 | Purification of chloroform | Stephen Yates | 1990-05-01 |
| 4886930 | Zeolitic para-xylene separation with tetralin heavy desorbent | — | 1989-12-12 |
| 4864069 | Zeolitic para-xylene separation with diethyltoluene heavy desorbent | — | 1989-09-05 |
| 4827049 | Process for the separation of dihydroxybenzene isomers | — | 1989-05-02 |
| 4827077 | Separation of indene from alkyl aromatics | — | 1989-05-02 |
| 4810266 | Carbon dioxide removal using aminated carbon molecular sieves | Anil R. Oroskar, Chin-Hsiung Chang | 1989-03-07 |
| 4797233 | Process for separating mono-, di- and triglycerides | — | 1989-01-10 |
| 4794202 | Process for separating halogen substituted toluene isomers | Thad S. Franczyk | 1988-12-27 |
| 4784807 | Process for separating triglylcerides by degree of unsaturation | — | 1988-11-15 |