Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7683542 | Direct cooling of an amalgam deposit in a low-pressure mercury amalgam lamp | Erich Arnold, Erik Roth | 2010-03-23 |
| 6820558 | Disk-shaped propellant module | Hans-Karl Haak | 2004-11-23 |
| 6745697 | Cartridge | Hans-Karl Haak | 2004-06-08 |
| 6467425 | Apparatus for internally coating a metal tube | Helmut Neff, Thomas Weise, Gert Schlenkert | 2002-10-22 |
| 6183820 | Method of internally coating a metal tube by explosive evaporation of the coating substance | Helmut Neff, Thomas Weise, Gert Schlenkert | 2001-02-06 |
| 5929363 | Method and apparatus for destroying hidden land mines | Helmut Neff, Dirk Kilfitt | 1999-07-27 |