Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6748855 | Device and method for blocking a stack of stacked objects | Ernst August Hahne, Franz Knopf | 2004-06-15 |
| 6445562 | Method and device for electrostatic charging | Ernst August Hahne, Franz Knopf | 2002-09-03 |
| 6159555 | Method and device for electrostatic charging | Ernst August Hahne, Franz Knopf | 2000-12-12 |
| 6015257 | Device for forming a stack on a transport table | Ernst August Hahne | 2000-01-18 |
| 5868546 | Device for forming a stack on a transport table | Ernst August Hahne | 1999-02-09 |
| 4835808 | Probe for removing dust from moving webs | Ernst August Hahne | 1989-06-06 |
| 4686069 | Air humidifier | Ernst August Hahne | 1987-08-11 |
| 4219864 | Device and method for moistening and/or discharging electrically insulating objects and materials | Hans Grunenfelder | 1980-08-26 |