Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7585803 | Catalyst regeneration method | Scott J. Price | 2009-09-08 |
| 7385097 | Process for the purification of a diolefin hydrocarbon stream | — | 2008-06-10 |
| 6969496 | Apparatus with increased yield and selectivity using side-by-side reaction zones | Michael J. Vetter, Joseph E. Zimmermann | 2005-11-29 |
| 6884400 | Reaction and regeneration system | Kyle P. Austin, James A. Szczurek, Larry D. Richardson, David M. Kazell, Charles T. Ressl +3 more | 2005-04-26 |
| 6657096 | Dehydrocyclodimerization process with catalyst reactivation | Kerry O. Boehner, Karl Z. Steigleder, Veronica Godfrey, Earl S. Lemberger | 2003-12-02 |
| 6472577 | Process for increasing the yield and selectivity of a dehydrogenation process using side-by-side reaction zones | Joseph E. Zimmermann, Michael J. Vetter | 2002-10-29 |
| 6395664 | Process for reactivating a deactivated dehydrocyclodimerization catalyst with water | Kerry O. Boehner, Karl Z. Steigleder, Veronica Godfrey, Earl S. Lemberger | 2002-05-28 |
| 6271428 | Process for the purification of a diolefin hydrocarbon stream | — | 2001-08-07 |
| 6225515 | Process for the purification of a diolefin hydrocarbon stream | — | 2001-05-01 |
| 6218589 | Method for improving the operation of a propane-propylene splitter | — | 2001-04-17 |
| 6194626 | Process for the purification of a diolefin hydrocarbon stream from a naphtha steam cracker | Bipin V. Vora | 2001-02-27 |
| 6107526 | Process for producing ethyl tertiary butyl ether | Stanley J. Frey, Scott P. Davis, Steven L. Krupa | 2000-08-22 |
| 5990361 | Process for producing ethyl tertiary butyl ether by catalytic distillation | Stanley J. Frey, Scott P. Davis, Steven L. Krupa | 1999-11-23 |
| 5847230 | Nitrile removal in an etherification process | Ricardo Castillo | 1998-12-08 |
| 5792899 | Process for the management of polynuclear aromatic compounds produced in a hydrocarbon dehydrogenation reaction zone | — | 1998-08-11 |
| 5672772 | Process for removal of nitriles from etherification feedstocks | Stanley J. Frey, David A. Hamm | 1997-09-30 |
| 5569790 | Process for removal of nitriles from etherification feedstocks | Stanley J. Frey, David A. Hamm | 1996-10-29 |
| 5457077 | Moving bed regeneration process with combined drying and dispersion steps | Robert R. Williamson, Michael E. Fettis | 1995-10-10 |
| 5370786 | Method for operating a continuous conversion process employing solid catalyst particles | Charles P. Luebke | 1994-12-06 |
| 5352848 | Nitrile removal in an etherification process | — | 1994-10-04 |
| 5321192 | Dehydrogenation process | Lester F. Smith, Stephen W. Gohres | 1994-06-14 |
| 5227566 | Process for the dehydrogenation of hydrocarbons | Michael E. Fettis | 1993-07-13 |
| 5151392 | Moving bed regeneration process with separate dispersion and chloriding steps | Michael E. Fettis | 1992-09-29 |
| 5087792 | Process for the dehydrogenation of hydrocarbons | Michael E. Fettis | 1992-02-11 |
| 5012021 | Process for the production of alkylaromatic hydrocarbons using solid catalysts | Bipin V. Vora | 1991-04-30 |