Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7436195 | Test apparatus for semiconductor elements on a semiconductor wafer, and a test method using the test apparatus | — | 2008-10-14 |
| RE34441 | Pressure sensor | Josef Winkler | 1993-11-16 |
| 4986129 | Pressure sensor | Josef Winkler | 1991-01-22 |
| 4816743 | Method and apparatus for the identification of oscillatory properties as well as for the operation of a piezo-electric tranducer | Klaus-Christoph Harms | 1989-03-28 |
| 4467271 | Test apparatus for determination of vibration characteristics of piezoelectric transducers | Peter W. Krempl | 1984-08-21 |
| 4441044 | Transducer with a piezoelectric sensor element | Peter Claassen, Peter W. Krempl | 1984-04-03 |