Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10082059 | Recovery of electrical energy and water from exhaust gas | — | 2018-09-25 |
| 9850798 | Auto throttle and exhaust flow control module construction | — | 2017-12-26 |
| 9174143 | Recovery of water from exhaust gas | Peter Hofbauer | 2015-11-03 |
| 8439159 | Exhaust muffler for internal combustion engines | — | 2013-05-14 |
| RE40481 | Air filtration device for internal combustion engine | — | 2008-09-09 |
| 6808552 | Air filtration device for internal combustion engine | — | 2004-10-26 |
| D385523 | Exhaust pipe system for motorcycle | — | 1997-10-28 |
| 5248859 | Collector/muffler/catalytic converter exhaust systems for evacuating internal combustion engine cylinders | — | 1993-09-28 |
| 5198625 | Exhaust muffler for internal combustion engines | — | 1993-03-30 |