Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5140860 | Electrodynamic transducer head | Roman Koch | 1992-08-25 |
| 4924181 | Device having electromagnet for providing a magnetic field inclined with respect to the transportation direction of a ferromagnetic body for non-destructive, magnetic testing of the body | — | 1990-05-08 |
| 4821204 | Method and device for testing for flaws with the eddy-current principle | — | 1989-04-11 |
| 4763070 | Method and apparatus to compensate for lateral changes of a ferromagnetic body during magnetic testing | — | 1988-08-09 |
| 4750134 | Device for the non-destructive testing of ferromagnetic bodies and a process for producing values for adjusting the device into an initial state for testing determined by the respective test samples | Herbert Diehl | 1988-06-07 |
| 4727321 | Method and device for magnetic and ultrasonic testing of ferro-magnetic objects | — | 1988-02-23 |
| 4692702 | Device with two generators for measuring the gradients of magnetic fields | Herbert Diehl | 1987-09-08 |
| 4689996 | Method and device for testing electrically conducting objects by means of ultra-sonics | — | 1987-09-01 |
| 4665752 | Electrodynamic transducer | Ewald Kowol | 1987-05-19 |
| 4665751 | Method for measuring the wall thicknesses of bodies by means of ultrasonic pulses and devices for applying the method | — | 1987-05-19 |
| 4628261 | Method and apparatus for separating magnetic field attributable to flaws in a material from magnetic fields attributable to other phenomena | Ursula Ruth | 1986-12-09 |
| 4596147 | Electrodynamic transducer head | Ekkehard Behl, Ewald Kowol | 1986-06-24 |
| 4578999 | Instrument for testing materials | Klaus Abend, Wolfgang Bottger, Heinz Schneider, Karl Laudenbach | 1986-04-01 |
| 4564809 | Eddy current test method with degree of amplification selected in accordance with a compensation signal | Klaus Abend, Ursula Orthen | 1986-01-14 |
| 4538108 | Testing arrangement for ferromagnetic bodies including magnetic field detectors extending between two pairs of poles of magnetic field generators spaced longitudinally along the body | Wilfried Lein | 1985-08-27 |
| 4480477 | Electrodynamic instrument transformer head | Ewald Kowol, Ursula Orthen | 1984-11-06 |
| 4452086 | Electrodynamic ultrasonic transformer | Karl Laudenbach | 1984-06-05 |