Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7521677 | Method and device for distance measurement | Gero Walter | 2009-04-21 |
| 6258151 | Method and apparatus for the purification and reuse of waste air mixed with additives (for example, solvents) or impurities | Gunter Thielen | 2001-07-10 |
| 5938816 | Process for purifying gases loaded in particular with chemical residues | Winfried Marquardt | 1999-08-17 |
| 5808425 | Method for controlling the emission current of an electron source and an electron source having a control circuit for controlling the emission current | — | 1998-09-15 |