Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6321996 | Supplementary heater for open vehicles | Gunter Siegel | 2001-11-27 |
| 6261173 | Open vehicle | — | 2001-07-17 |
| 6213865 | Wind partition arrangement and open vehicle using same | — | 2001-04-10 |
| 5839774 | Anti-buffet screen device for an open motor vehicle and method of making same | Albert Hack | 1998-11-24 |
| 5725639 | Device for drying air for motor vehicles | Noureddine Khelifa, Robert Hoeppler | 1998-03-10 |
| 5647534 | Device for heating an interior of an electric vehicle | Michael Kelz | 1997-07-15 |
| 5646614 | System for monitoring the front or rear parking space of a motor vehicle | Guenter Abersfelder, Helmut Grantz | 1997-07-08 |
| 5566880 | Process and apparatus for heating the passenger compartment of a motor vehicle | Noureddine Khelifa, Karl-Gerd Krumbach, Michael Lohle, Gunter Abersfelder, Helmut Grantz +2 more | 1996-10-22 |
| 5483807 | Device for air-conditioning the passenger compartment and for cooling the drive system of electric vehicles | Guenter Abersfelder, Helmut Grantz | 1996-01-16 |
| 5076350 | Heat tube designed plate heat exchanger | Helmut Grantz | 1991-12-31 |
| 4691949 | Lock arrangement for a motor vehicle door | Helmut Grantz | 1987-09-08 |
| 4550774 | Surface heating body for vehicles | Rudolf Andres, Helmut Grantz, Wolf-Dietrich Muenzel | 1985-11-05 |
| 4520863 | Heat-exchanger with a bundle of parallelly extending pipes adapted to be acted upon by air | Rudolf Andres, Helmut Grantz, Wolf-Dietrich Munzel | 1985-06-04 |
| 4503906 | Surface heater structure, especially for vehicles | Rudolf Andres, Helmut Grantz, Wolf-Dietrich Munzel | 1985-03-12 |
| 4448241 | Heat-exchanger with a bundle of parallelly extending pipes adapted to be acted upon by air | Rudolf Andres, Helmut Grantz, Wolf-Dietrich Munzel | 1984-05-15 |
| 4448242 | Heat-exchanger with a bundle of parallelly extending pipes adapted to be acted upon by air | Rudolf Andres, Helmut Grantz, Wolf-Dietrich Munzel | 1984-05-15 |