Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8931357 | Coaxial needle and pipetting device | Christian Conrad | 2015-01-13 |
| 8199407 | Immersion objective, apparatus for forming an immersion film and method | Urban Liebel, Frank Sieckmann | 2012-06-12 |
| 4579004 | Instrument for detecting the instant at which a crack begins in a mechanical strength test of a ferromagnetic metal | Jorg F. Kalthoff | 1986-04-01 |
| 4418563 | Method of determining the impact fracture toughness K.sub.ID by means of impact tests | Jorg F. Kalthoff | 1983-12-06 |