Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7229948 | Exhaust gas catalyst and method of manufacturing same | Albert Chigapov, George Graham, Hung-Wen Jen | 2007-06-12 |
| 6893998 | Exhaust gas catalyst and method of manufacturing same | Albert Nazipovich Shigapov, George Graham, Hung-Wen Jen | 2005-05-17 |
| 5376344 | Three-way catalyst for automotive emission control | Mohinder S. Chattha, William L. H. Watkins | 1994-12-27 |
| 5351483 | Integral unitary manifold-muffler-catalyst device | James E. Riley, Thomas E. Bazil, William R. Adam, Hans P. Creutz, Robert Walter McCabe | 1994-10-04 |
| 5328672 | Method for purification of lean-burn engine exhaust gas | Clifford Norman Montreuil, Mohinder S. Chattha | 1994-07-12 |
| 5275795 | Method for purification of lean-burn engine exhaust gas | Clifford Norman Montreuil, Mohinder S. Chattha | 1994-01-04 |
| 5220789 | Integral unitary manifold-muffler-catalyst device | James E. Riley, Thomas E. Bazil, William R. Adam, Hans P. Creutz, Robert Walter McCabe | 1993-06-22 |
| 5155077 | Catalyst for purification of lean-burn engine exhaust gas | Clifford Norman Montreuil, Mohinder S. Chattha | 1992-10-13 |
| 5102853 | Three-way catalyst for automotive emission control | Mohinder S. Chattha, William L. H. Watkins | 1992-04-07 |
| 5081092 | Oxidation catalyst with modified platinum structure | Mohinder S. Chattha, William L. H. Watkins | 1992-01-14 |
| 5021389 | Three-way catalyst for automotive emission control and method of making the catalyst | Mohinder S. Chattha, William L. H. Watkins | 1991-06-04 |
| 4992405 | Three-way catalyst for automotive emission control and method of making the catalyst | Mohinder S. Chattha, William L. H. Watkins | 1991-02-12 |
| 4950476 | Method of catalytically oxidizing alcohol vapor accompanied by varying amounts of excess oxygen | Eugene C. Su, Thomas Korniski, William L. H. Watkins | 1990-08-21 |
| 4919903 | Method of catalytically oxidizing methanol vapor accompanied by little or no excess oxygen | Eugene C. Su | 1990-04-24 |
| 4916898 | Method for treatment of exhaust gases | Joseph T. Kummer | 1990-04-17 |
| 4906443 | Construction, method of making and method of using alumina-supported, precious metal oxidation catalysts | William L. H. Watkins | 1990-03-06 |
| 4782038 | Platinum group alumina-supported, metal oxidation catalysts and method of making same | William L. H. Watkins | 1988-11-01 |
| 4508691 | Method for treating exhaust gases with an improved catalyst composition | Karen Marie Adams | 1985-04-02 |
| 4499863 | Method of operating an internal combustion engine on a methanol fuel | William L. H. Watkins | 1985-02-19 |
| 4389382 | Method of using a simplified low cost catalyst system | Karen Marie Adams | 1983-06-21 |
| 4374103 | Method of using a low cost catalyst system | Karen Marie Adams | 1983-02-15 |
| 4233188 | Catalyst for treating exhaust gas from an internal combustion engine | Mordecai Shelef | 1980-11-11 |
| 4233189 | Catalyst of rhodium on zirconia | Joseph T. Kummer, Mordecai Shelef, Henryk K. Stepien, Hsien C. Yao | 1980-11-11 |
| 4192779 | Catalyst system and method for increasing the selectivity of a catalyst | William L. H. Watkins, Henryk K. Stepien | 1980-03-11 |