Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951098 | Method and system for controlling temperature of an internal combustion engine exhaust gas aftertreatment device | Lifeng Xu, Jialin Yang, Richard Baker, Diana Brehob | 2005-10-04 |
| 6928359 | High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature | Lifeng Xu | 2005-08-09 |
| 6813884 | Method of treating diesel exhaust gases | Albert Nazipovich Shigapov, Brendan Patrick Carberry | 2004-11-09 |
| 6810660 | System for minimizing the impact of poisoning of automotive exhaust aftertreatment systems | Jeffrey Scott Hepburn, Carolyn Parks Hubbard, Gang Guo, Lifeng Xu | 2004-11-02 |
| 6742326 | High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature | Lifeng Xu | 2004-06-01 |
| 6698191 | High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature | Lifeng Xu | 2004-03-02 |
| 6423293 | Oxygen storage material for automotive catalysts and process of using | Woosang Chun, George Graham | 2002-07-23 |
| 6187709 | Palladium catalyst pre-oxidation to reduce light-off temperature | — | 2001-02-13 |
| 6139814 | Thermally stable, high-surface-area metal oxides made by organic templating | Albert Nazipovich Shigapov, George Graham | 2000-10-31 |
| 6052989 | Emission control system for internal combustion engines | Raymond L. Willey | 2000-04-25 |
| 5597772 | Thermally stable rhodium/alumina catalysts | Rengin K. Usmen, Harendra S. Gandhi | 1997-01-28 |
| 5556825 | Automotive catalysts with improved oxygen storage and metal dispersion | Mordecai Shelef, Rengin K. Usmen, George Graham, William L. H. Watkins | 1996-09-17 |
| 5433071 | Apparatus and method for controlling noxious components in automotive emissions using a conditioning catalyst for removing hydrogen | Raymond L. Willey, Jeffrey Scott Hepburn | 1995-07-18 |
| 5351483 | Integral unitary manifold-muffler-catalyst device | James E. Riley, Thomas E. Bazil, William R. Adam, Hans P. Creutz, Haren S. Gandhi | 1994-10-04 |
| 5220789 | Integral unitary manifold-muffler-catalyst device | James E. Riley, Thomas E. Bazil, William R. Adam, Hans P. Creutz, Haren S. Gandhi | 1993-06-22 |
| 4762093 | Compact catalytic dissociator system for cold starting methanol-fueled cars | David F. McCready, Philip V. Mohan, Robert A. Potter | 1988-08-09 |
| 4673556 | Method of simultaneous oxidation of carbon monoxide and unburned fuel in methanol vehicle exhaust | Patricia J. Mitchell | 1987-06-16 |