Issued Patents All Time
Showing 51–75 of 95 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5854170 | Method for preparing a modified solid oxide | Clarence D. Chang, Frank T. DiGuiseppi, Jose G. Santiesteban, David L. Stern | 1998-12-29 |
| 5611912 | Production of high cetane diesel fuel by employing hydrocracking and catalytic dewaxing techniques | Roland H. Heck, Michael Ehlers | 1997-03-18 |
| 5563310 | Toluene alkylation with methanol | Clarence D. Chang, Frank T. DiGuiseppi | 1996-10-08 |
| 5563311 | Process for preparing short chain alkyl aromatic compounds | Clarence D. Chang, Jane C. Cheng, Jos e G. Santiesteban, Dennis E. Walsh | 1996-10-08 |
| 5543036 | Process for hydrotreating | Clarence D. Chang, Daniel J. Martenak, Jose G. Santiesteban, Dennis E. Walsh | 1996-08-06 |
| 5516954 | Process for preparing long chain alkylaromatic compounds | Clarence D. Chang, Jose G. Santiesteban, Margaret M. Wu, Yusheng Xiong | 1996-05-14 |
| 5475181 | Process for selectively converting ethene to isobutylene over selectivated ZSM-35 | Frank T. DiGuiseppi, Roland H. Heck | 1995-12-12 |
| 5453556 | Oligomerization process for producing synthetic lubricants | Clarence D. Chang, Jose G. Santiesteban, Margaret M. Wu, Yusheng Xiong | 1995-09-26 |
| 5449847 | Selective conversion of benzene to tercyclohexane | Clarence D. Chang, John D. Lutner, Jose G. Santiesteban | 1995-09-12 |
| 5449849 | Selectivated ZSM-035 catalyst and process for selectively converting ethene to linear butenes therewith | Frank T. DiGuiseppi, Roland H. Heck | 1995-09-12 |
| 5382731 | Combined paraffin isomerization/ring opening process | Clarence D. Chang, Roy Daniel Bastian, Jose G. Santiesteban | 1995-01-17 |
| 5264643 | Process for converting olefins to higher hydrocarbons | Frank T. DiGuiseppi, Roland H. Heck | 1993-11-23 |
| 5238898 | Catalyst and process for upgrading methane to higher hydrocarbons | Lorenzo C. DeCaul, Robert E. Palermo, Dennis E. Walsh | 1993-08-24 |
| 5234875 | Coke-selectivated porous acidic crystalline catalyst, its preparation, and use in olefin oligomerization | Roland H. Heck, Frank T. DiGuiseppi | 1993-08-10 |
| 5191138 | Process for oxidative conversion of methane to higher hydrocarbons using metal sulfide oxidizing agent | James N. Michaels, Robert E. Palermo, David L. Stern, Dennis E. Walsh | 1993-03-02 |
| 5173461 | Toluene disproportionation catalyst | Robert P. L. Absil, David S. Shihabi, David O. Marler, Clarence D. Chang, Donna M. Mitko | 1992-12-22 |
| 5149516 | Partial oxidation of methane over perovskite catalyst | Lorenzo C. DeCaul, Robert E. Palermo, Dennis E. Walsh | 1992-09-22 |
| 5126296 | Activation of zeolites using hydrate of trivalent metal fluoride | Clarence D. Chang | 1992-06-30 |
| 5105044 | Catalyst and process for upgrading methane to higher hydrocarbons | Lorenzo C. DeCaul, Robert E. Palermo, Dennis E. Walsh | 1992-04-14 |
| 5068486 | Process for direct oxidative conversion of methane to higher hydrocarbons at high pressure and moderate temperature | Daniel J. Martenak, Robert E. Palermo, Dennis E. Walsh | 1991-11-26 |
| 5053576 | Process for upgrading methane to higher hydrocarbons | Robert E. Palermo, Judy A. Pearson, Dennis E. Walsh | 1991-10-01 |
| 5053374 | Method for preparing a zeolite catalyst bound with a refractory oxide of low acidity | Robert P. L. Absil, Philip J. Angevine, Joseph A. Herbst, Donald J. Klocke, John P. McWilliams +1 more | 1991-10-01 |
| 5043307 | Modified crystalline aluminosilicate zeolite catalyst and its use in the production of lubes of high viscosity index | Emmerson Bowes, Clarence D. Chang, David S. Shihabi | 1991-08-27 |
| 5030787 | Catalytic disproportionation/transalkylation utilizing a C9+ aromatics feed | Robert P. L. Absil, David O. Marler, David S. Shihabi, James C. Vartuli, Philip Varghese | 1991-07-09 |
| 5025109 | Process for upgrading methane to higher hydrocarbons | Lorenzo C. DeCaul, Robert E. Palermo, Dennis E. Walsh | 1991-06-18 |