Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7718838 | Olefin production process | William M. Woodard, Warren M. Ewert, Harvey Hensley, Mark E. Lashier, Glyndal D. Cowan +5 more | 2010-05-18 |
| 7157612 | Olefin production process | Warren M. Ewert, William M. Woodard, Harvey Hensley, Mark E. Lashier, Glyndal D. Cowan +5 more | 2007-01-02 |
| 6956064 | Catalyst composition comprising ruthenium and zirconium and processes therefor and therewith for preparing high molecular weight hydrocarbons such as polymethylene | Jianhua Yao, James B. Kimble | 2005-10-18 |
| 6812369 | Hydrotreating catalyst composition and processes therefor and therewith | — | 2004-11-02 |
| 6562231 | Catalyst composition and processes therefor and therewith | Dwayne R. Senn | 2003-05-13 |
| 6455461 | Hydrotreating catalyst composition and processes therefor and therewith | — | 2002-09-24 |
| 6110357 | Passivated catalysts for cracking process | Dwayne R. Senn, Brent J. Bertus | 2000-08-29 |
| 6037299 | Catalyst composition and processes therefor and therewith | Dwayne R. Senn | 2000-03-14 |
| 5994257 | Hydrotreating catalyst composition and processes therefor and therewith | — | 1999-11-30 |
| 5986153 | Olefin color stabilization | Jeffrey W. Freeman | 1999-11-16 |
| 5948243 | Catalyst comprising aluminum borate and zirconium borate and use thereof in a hydrotreating process | — | 1999-09-07 |
| 5705723 | Hydrogenation catalyst composition and a hydrogenation process | Marvin M. Johnson | 1998-01-06 |
| 5618407 | Catalytic cracking process utilizing a catalyst comprising aluminum borate and zirconium borate | Dwayne R. Senn, Marvin M. Johnson | 1997-04-08 |
| 5574201 | Alkylation process | — | 1996-11-12 |
| 5536706 | Use of butadiene-styrene copolymers in crude oils | Marvin M. Johnson, Howard F. Efner | 1996-07-16 |
| 5461021 | Metal borate composition | — | 1995-10-24 |
| 5427689 | Separation of polar substances from hydrocarbons | Marvin M. Johnson | 1995-06-27 |
| 5364976 | Alkylation/etherification process | — | 1994-11-15 |
| 5352395 | Carbon and ceramic-containing layers for use in sintering of silicon nitride article | Bruce W. Gerhold | 1994-10-04 |
| 5349116 | Alkane alkylation and catalyst therefor | Marvin M. Johnson | 1994-09-20 |
| 5288685 | Alkylation process and catalyst therefor | Roy F. Wright, David Miller | 1994-02-22 |
| 5254791 | Cycloalkane isomerization process | An-hsiang Wu, Marvin M. Johnson | 1993-10-19 |
| 5233119 | Alkylation process and catalyst therefor | Roy F. Wright, David Miller | 1993-08-03 |
| 5212214 | Arylene sulfide coating having improved physical properties | — | 1993-05-18 |
| 5147719 | Production of phenylene sulfide-arylene sulfide/sulfone block copolymers | Melvin D. Herd | 1992-09-15 |