Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8015803 | Operating method for a system composed of a reformer and a catalytic exhaust gas aftertreatment device | Jochem Huber, Michael Preis, Christian Liebl | 2011-09-13 |
| 7481044 | Method for operation of an internal combustion engine running on hydrogen | Michael Preis, Joachim Bettendorf, Bernhard Staar | 2009-01-27 |
| 7003946 | Process for the catalytic exhaust gas aftertreatment of engine combustion emissions | Michael Preis, Hans Fickel | 2006-02-28 |
| 6931841 | Process for the catalytic exhaust gas aftertreatment of engine combustion emissions | Michael Preis, Hans Fickel | 2005-08-23 |
| 6759154 | Water recovery for a fuel cell system | John F. O'Brien, Malcolm James Grieve, Michael T. Faville, John Noetzel, Juergen Kammerer | 2004-07-06 |
| 6526760 | Method and apparatus for conveying a cryogenically-stored fuel | Hans Fickel | 2003-03-04 |