Issued Patents All Time
Showing 26–50 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633417 | Enhanced shape selective applications and methods to increase the activity thereof | David H. Olson, Sharon B. McCullen | 1997-05-27 |
| 5625104 | Alkali metal ion exchanged selectivated zeolite catalyst | David L. Stern | 1997-04-29 |
| 5625103 | Continuous toluene disproportionation process | Jeevan S. Abichandani, Ronald H. Fischer, Ivy D. Johnson, David L. Stern | 1997-04-29 |
| 5612270 | Ammonium treated selectivated zeolite catalyst | David L. Stern | 1997-03-18 |
| 5602066 | Method of making a liquid washed selectivated zeolite catalyst | David L. Stern | 1997-02-11 |
| 5574199 | Para-selective aromatization process with ex situ selectivated zeolite catalyst | Ralph M. Dessau | 1996-11-12 |
| 5569805 | Catalytic conversion of aromatic compounds | Ernest W. Valyocsik, Chaya R. Venkat | 1996-10-29 |
| 5567666 | Selectivated zeolite catalyst treated with a dealuminizing agent | David L. Stern | 1996-10-22 |
| 5530170 | Ethylbenzene alkylation with ethylene to produce para-diethylbenzene | Stephen H. Brown, Sharon B. McCullen, David H. Olson, David L. Stern | 1996-06-25 |
| 5502142 | Direct thermal synthesis and ceramic applications of poly(borazylenes) | Larry G. Sneddon, Paul Joseph Fazen | 1996-03-26 |
| 5495059 | Multiple impregnation technique for the preparation of ex situ selectivated zeolite catalysts | Sharon B. McCullen, David H. Olson | 1996-02-27 |
| 5488194 | Selective production of para-dialkyl substituted benzenes and catalyst therefor | Ralph M. Dessau | 1996-01-30 |
| 5476823 | Method of preparation of ex situ selectivated zeolite catalysts for enhanced shape selective applications and method to increase the activity thereof | David H. Olson, Sharon B. McCullen | 1995-12-19 |
| 5406015 | Selective ethylbenzene disproportionation processes (SEBDP) with ex situ selectivated zeolite catalyst | Sharon B. McCullen, David H. Olson, Chaya R. Venkat | 1995-04-11 |
| 5403800 | Multiple impregnation technique for the preparation of ex situ selectivated zeolite catalysts | Sharon B. McCullen, David H. Olson | 1995-04-04 |
| 5382737 | Selective ethylbenzene disproportionation process (SEBDP) with ex situ selectivated zeolite catalysts | Sharon B. McCullen, David H. Olson, Chaya R. Venkat | 1995-01-17 |
| 5370785 | Hydrocarbon conversion process employing a porous material | Charles T. Kresge, Sharon B. McCullen, Wieslaw J. Roth, James C. Vartuli | 1994-12-06 |
| 5367099 | Selective toluene disproportionation process (STDP) with ex situ selectivated zeolite catalyst | David H. Olson, Sharon B. McCullen | 1994-11-22 |
| 5365004 | Selective toluene disproportionation process (STDP) with ex situ selectivated zeolite catalysts | Sharon B. McCullen, David H. Olson | 1994-11-15 |
| 5362695 | Inorganic molecular sieves encapsulating chelates | Ralph M. Dessau, John B. Higgins | 1994-11-08 |
| 5348687 | M41S materials having nonlinear optical properties | Guenter H. Kuehl, David H. Olson, John L. Schlenker, Galen D. Stucky, James C. Vartuli | 1994-09-20 |
| 5347060 | Phase-transfer catalysis with onium-containing synthetic mesoporous crystalline material | Stuart D. Hellring | 1994-09-13 |
| 5334368 | Synthesis of mesoporous oxide | Kirk D. Schmitt, James C. Vartuli | 1994-08-02 |
| 5304363 | Porous materials | Charles T. Kresge, Sharon B. McCullen, Wieslaw J. Roth, James C. Vartuli | 1994-04-19 |
| 5264203 | Synthetic mesoporous crystalline materials | Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli | 1993-11-23 |