Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6969247 | Injection molding unit with a device for mixing and metering plastic melt and additives | — | 2005-11-29 |
| 6722707 | Lapped flange for connecting pipes and method for producing such a lapped flange | Ernst Döring | 2004-04-20 |
| 5163732 | Adjustable roof plate | — | 1992-11-17 |
| 5158729 | Process for producing a tube sheet | Hermann Gemeinhardt, Elmar Hoff | 1992-10-27 |
| 4995666 | Sun roof | — | 1991-02-26 |
| 4984630 | Tube sheet for apparatus for transferring heat and/or mass, use thereof and process for its production | Hermann Gemeinhardt, Elmar Hoff | 1991-01-15 |
| 4968088 | Outwardly swingable roof assembly for automotive vehicles | — | 1990-11-06 |
| 4946248 | Connection end of a light waveguide bonded to a holder | Ulrich Grzesik | 1990-08-07 |
| 4877302 | Plug connector for the ends of two light waveguides | Ulrich Grzesik | 1989-10-31 |