Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660958 | Arc welding method and apparatus | Stefan Napierala, Richard Eberling, Simon Harries | 2003-12-09 |
| 6517639 | Method and device for decontaminating interior spaces | Hans-Joachim Toepfer, Ruediger Hellstern, Ulli Reinhardt, Dimitri Dratchnev | 2003-02-11 |