Issued Patents All Time
Showing 25 most recent of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8784647 | Hydroprocessing catalysts and their production | Chris E. Kliewer, Stuart L. Soled, Sabato Miseo | 2014-07-22 |
| 7803276 | Regeneration of sulfuric acid | Bhupender S. Minhas, Dennis G. Peiffer, David L. Stern, Tomas R. Melli | 2010-09-28 |
| 7504021 | FCC process using mesoporous catalyst | William A. Wachter, Stephen J. McCarthy, David L. Stern | 2009-03-17 |
| 7238636 | High temperature calcination of selectivated molecular sieve catalysts for activity and diffusional modification | William G. Borghard, Arthur W. Chester, Carrie L. Kennedy, David L. Stern | 2007-07-03 |
| 6878654 | Reactivation of aromatics alkylation catalysts | Ajit B. Dandekar, Michael Hryniszak, David L. Stern, Kathleen M. Keville | 2005-04-12 |
| 6781025 | Reactivation of aromatics alkylation catalysts | Ajit B. Dandekar, Michael Hryniszak, David L. Stern | 2004-08-24 |
| 6777583 | Binderless ex situ selectivated zeolite catalyst | Jane C. Cheng, Sharon B. McCullen, David H. Olson, David L. Stern | 2004-08-17 |
| 6576582 | Binderless ex situ selectivated zeolite catalyst | Jane C. Cheng, Sharon B. McCullen, David H. Olson, David L. Stern | 2003-06-10 |
| 6504075 | Small crystal ZSM-5, its synthesis and use | Carrie L. Kennedy, Wieslaw J. Roth, David L. Stern | 2003-01-07 |
| 6398947 | Reformate upgrading using zeolite catalyst | Robert A. Crane, Vinaya Kapoor, David L. Stern, John Thurtell | 2002-06-04 |
| 6306362 | Aluminosilicate molecular sieve | Scott Han, David O. Marler, Louis D. Rollmann, John L. Schlenker, Suzanne E. Schramm | 2001-10-23 |
| 6187982 | Process for converting dienes and oxygenates to para-xylene and light olefins | Stephen H. Brown, William A. Weber | 2001-02-13 |
| 6180550 | Small crystal ZSM-5, its synthesis and use | Carrie L. Kennedy, Wieslaw J. Roth, David L. Stern | 2001-01-30 |
| 6028238 | Xylene isomerization | Robert A. Crane, Jocelyn A. Kowalski, Daria N. Lissy, Mark Mathias, David L. Stern | 2000-02-22 |
| 6025454 | Direct thermal synthesis and ceramic applications of poly(borazylenes) and borazine/polyhedral borane oligomers | Larry G. Sneddon, Paul Joseph Fazen | 2000-02-15 |
| 5998688 | Xylene isomerization process using toluene co-feed | Jeevan S. Abichandani, Stephen H. Brown, Ronald J. Cimini, Ivy D. Johnson, Selma SheungNam Kwok +2 more | 1999-12-07 |
| 5977420 | Dual-loop xylene isomerization process | Jeevan S. Abichandani, Stephen H. Brown, Ronald J. Cimini, Ivy D. Johnson, Dimitris K. Liguras +1 more | 1999-11-02 |
| 5849968 | Hydrocarbon conversion process with alkaline earth metal ion exchanged selectivated zeolite catalyst | David L. Stern | 1998-12-15 |
| 5773679 | Performance enhancement of zeolite catalysts with water cofeed | David L. Stern | 1998-06-30 |
| 5705726 | Xylene isomerization on separate reactors | Jeeven S. Abichandani, Robert G. Bundens, Lloyd L. Breckenridge, David L. Stern, Chaya R. Venkat | 1998-01-06 |
| 5698756 | Toluene alkylation with ethylene to produce para-ethyloluene | Sharon B. McCullen, David H. Olson, David L. Stern | 1997-12-16 |
| 5689025 | Ethylbenzene production process with ex situ selectivated zeolite catalyst | Jeevan S. Abichandani, Sharon B. McCullen, David H. Olson | 1997-11-18 |
| 5689027 | Selective ethylbenzene conversion | Jeevan S. Abichandani, David H. Olson, P. Thomas Reischman, David L. Stern, Chaya R. Venkat | 1997-11-18 |
| 5675047 | Method of preparation of ex situ selectivated zeolite catalysts for aromatic alkylation applications | Ralph M. Dessau, David H. Olson | 1997-10-07 |
| 5659098 | High conversion touluene disproportionation with ex situ selectivated zeolite catalysts | Timothy F. Kinn, Sharon B. McCullen, David H. Olson, David L. Stern | 1997-08-19 |