Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481609 | Holder for a drive piston of a setting tool | Tilo Dittrich, Gerhard Ehmig, Thomas Sperrfechter | 2002-11-19 |
| 6478208 | Holder for a drive piston of a setting tool | Thomas Sperrfechter | 2002-11-12 |
| 6425354 | Portable, combustion-engined tool and a method of controlling the tool operation | Stefan Bonig, Joachim Thieleke, Iwan Wolf | 2002-07-30 |