Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6323381 | Manufacture of high purity benzene and para-rich xylenes by combining aromatization and selective disproportionation of impure toluene | Robert A. Innes, Arnold J. Gloyn | 2001-11-27 |
| 6143166 | Process for production of aromatics in parallel reformers with an improved catalyst life and reduced complexity | — | 2000-11-07 |
| 6051128 | Split-feed two-stage parallel aromatization for maximum para-xylene yield | Bruce J. Thom | 2000-04-18 |
| 6051744 | Low pressure hydrodealkylation of ethylbenzene and xylene isomerization | Charles R. Wilson, Roger F. Vogel | 2000-04-18 |
| 6004452 | Process for converting hydrocarbon feed to high purity benzene and high purity paraxylene | Gary A Ash, Nhu Q Dao, Arnold J. Gloyn, N J Haritatos, Paul I Hodgen +6 more | 1999-12-21 |
| 5958217 | Two-stage reforming process that enhances para-xylene yield and minimizes ethylbenzene production | Roger F. Vogel | 1999-09-28 |
| 5952536 | Aromatics and toluene/trimethylbenzene gas phase transalkylation processes | Roger F. Vogel, Stacey I. Zones | 1999-09-14 |
| 5877374 | Low pressure hydrodealkylation of ethylbenzene and xylene isomerization | Roger F. Vogel | 1999-03-02 |
| 5081323 | Liquid phase alkylation or transalkylation process using zeolite beta | Robert A. Innes, Stacey I. Zones | 1992-01-14 |
| 4891458 | Liquid phase alkylation or transalkylation process using zeolite beta | Robert A. Innes, Stacey I. Zones | 1990-01-02 |
| 4584423 | Xylene isomerization using a zeolite with a group II metal | Donald A. Hickson | 1986-04-22 |