Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6889673 | Device for exhaust-gas recirculation | Hermann Buter, Philipp Weber | 2005-05-10 |
| 6726174 | Control valve, especially for an internal combustion engine, for the controlled recycling of exhaust gases | Bernd Bareis, Mathias Elsaesser | 2004-04-27 |
| 6631707 | Device for recirculating the exhaust gas of an internal combustion engine | Jurgen Huter, Rudiger Pfaff, Joachim Wiltschka | 2003-10-14 |
| 6386188 | Exhaust gas recirculation valve | — | 2002-05-14 |
| 6044827 | Exhaust gas recirculation arrangement | Rudiger Pfaff, Joachim Wiltschka | 2000-04-04 |
| 5749350 | Value control for an internal combustion engine | — | 1998-05-12 |
| 5138835 | Diesel engine with an exhaust-gas filter | Dirk Naber | 1992-08-18 |
| 5088462 | Method of actuating a butterfly valve arranged in the intake system of an air-compressing fuel-injected internal combustion engine | Gernot Hertweck | 1992-02-18 |
| 5067470 | Exhaust-gas recycling device for an internal-combustion engine | Detlef Panten, Dirk Naber | 1991-11-26 |
| 5065719 | Actuating device for a throttle valve arranged in an intake pipe of a diesel internal combustion engine | Detlef Panten, Gernot Hertweck | 1991-11-19 |
| 5035228 | Exhaust-gas recycling device for an internal-combustion engine, epsecially a diesel engine | — | 1991-07-30 |
| 4989496 | Vacuum supply system with throttling valve in a motor vehicle | — | 1991-02-05 |
| 4953447 | Vacuum supply system in a motor vehicle | — | 1990-09-04 |
| 4556170 | Pneumatic control system | Klaus Blumensaat, Wolfgang Burthel | 1985-12-03 |
| 4495906 | Valve guide arrangement for the valve stem of a valve in an internal combustion engine | Gernot Hertweck, Michael Grohn, Peter Moser | 1985-01-29 |