Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7150456 | Sheet transport drum for a machine processing printing-material sheets | Markus Gerstenberger, Christian Hieb, Karl-Heinz Helmstadter, Thorsten Eckart | 2006-12-19 |
| 6851361 | Reversing or turning assembly of a sheet-processing machine | Christian Gorbing, Karl-Heinz Helmstadter | 2005-02-08 |
| 6561508 | Device and method for transferring a sheet | Karl-Heinz Helmstadter | 2003-05-13 |
| 6105499 | Transport drum in rotary printing presses | Karl-Heinz Helmstadter | 2000-08-22 |
| 6038976 | Suction-air control device | Karl-Heinz Helmstadter | 2000-03-21 |
| 5988065 | Device for controlling suction air or vacuum and method of actuating the device | Rudi Haupenthal, Karl-Heinz Helmstadter, Hans-Peter Hiltwein, Roland Krupp | 1999-11-23 |