Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6913719 | Device and process for injection molding of hollow plastic parts | Helmut Eckardt, Stephan van der Steen, Marc Wulfrath, Norbert Bielich | 2005-07-05 |
| 6709626 | Process and apparatus for injection molding of molded parts having at least one cavity | Helmut Eckardt, Stephan van der Steen, Marc Wulfrath | 2004-03-23 |
| 5645866 | Pressure controlling and/or regulating device for a fluid medium, in particular air or gas | Helmut Eckardt, Johann Holzschuh, Jurgen Ehritt, Michael Renger | 1997-07-08 |