Issued Patents All Time
Showing 25 most recent of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7598085 | Test kit for measuring the level of carboxylate anion in engine coolant | Leonard S. Bartley, Jr. | 2009-10-06 |
| 7387748 | Antifreeze coolant composition for high temperature applications | Paul O. Fritz, Leonard S. Bartley, Jr. | 2008-06-17 |
| 5952233 | Test kit for measuring the level of carboxylate anion in engine coolant | Leonard S. Bartley, Jr., Paul M. V. Van de Ven | 1999-09-14 |
| 5817229 | Catalytic hydrocarbon upgrading process requiring no external hydrogen supply | Chakka Sudhakar, Mahendra S. Patel | 1998-10-06 |
| 5744365 | Method for measuring the level of carboxylate anion in engine coolant | Leonard S. Bartley, Jr., Paul M. V. Van de Ven | 1998-04-28 |
| 5744667 | Preparation of trimethyl pentanes by hydrogen transfer | — | 1998-04-28 |
| 5559068 | Reforming/dehydrocyclization catalysts | Qianjun Chen, Peter K. Coughlin | 1996-09-24 |
| 5523510 | Treated bound ferrierite zeolites for skeletal isomerization of n-olefins to iso-olefins | Chi-Lin O'Young, John Hazen, Alison E. Hadowanetz, James E. Browne | 1996-06-04 |
| 5520796 | Reforming/dehydrocyclization catalysts | Qianjun Chen, Peter K. Coughlin | 1996-05-28 |
| 5510560 | Skeletal isomerization of n-olefins to iso-olefins on binded ferrierite zeolites | Chi-Lin O'Young, Alison E. Hadowanetz, John Hazen, James E. Browne | 1996-04-23 |
| 5491276 | Skeletal isomerization of n-butylenes to isobutylene on zeolites | Chi-Lin O'Young, Alison E. Hadowanetz, John Hazen, James E. Browne | 1996-02-13 |
| 5346611 | Reforming/dehydrocyclization catalysts | Peter K. Coughlin | 1994-09-13 |
| 5316656 | Hydrocarbon conversion processes with molecular sieve agglomerates having improved transport properties | Frank P. Gortsema | 1994-05-31 |
| 5225071 | Reforming/dehydrocyclization catalysts | Peter K. Coughlin | 1993-07-06 |
| 5168084 | Molecular sieve agglomerates with improved transport properties | Frank P. Gortsema | 1992-12-01 |
| 5098877 | Reforming/dehydrocyclization catalysts | Peter K. Coughlin | 1992-03-24 |
| 5047139 | Catalyst for mid-barrel hydrocracking and process using same | Frank P. Gortsema, Albert R. Springer, Jule A. Rabo | 1991-09-10 |
| 5019240 | Hydrocracking process | Donald F. Best, Gary N. Long, Jule A. Rabo, Edward T. Wolynic | 1991-05-28 |
| 4995964 | Midbarrel hydrocracking process employing rare earth pillared clays | Frank P. Gortsema, John R. McCauley, James G. Miller, Jule A. Rabo | 1991-02-26 |
| 4992160 | Conversion of crude oil feeds by catalytic cracking | Gary N. Long, Jule A. Rabo | 1991-02-12 |
| 4976846 | Conversion of crude oil feeds | Gary N. Long, Jule A. Rabo | 1990-12-11 |
| 4960504 | Dewaxing catalysts and processes employing silicoaluminophosphate molecular sieves | Jule A. Rabo, Gary N. Long, Frank P. Gortsema, Albert R. Springer | 1990-10-02 |
| 4923594 | Fluid catalytic cracking process | Peter K. Coughlin, Jule A. Rabo | 1990-05-08 |
| 4914067 | Catalytic cracking catalysts and cracking process using mixed catalyst system | Peter K. Coughlin, Mark T. Staniulis, Gary N. Long, Jule A. Rabo | 1990-04-03 |
| 4913799 | Hydrocracking catalysts and processes employing non-zeolitic molecular sieves | Frank P. Gortsema, Albert R. Springer, Jule A. Rabo, Gary N. Long | 1990-04-03 |