Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684932 | Method and arrangement for measuring changes of capacitive state at a security fence | Peter Kupec, Uwe Metzner | 1987-08-04 |
| 4579317 | Electrode arrangement for capacitive guard fences | Herbert Foissner, Peter Kupec, Uwe Metzner | 1986-04-01 |
| 4543565 | Method and apparatus for monitoring an alarm system | Karla Oberstein | 1985-09-24 |
| 4517554 | Method and apparatus for inspecting a danger alarm system | Otto W. Moser | 1985-05-14 |
| 4514720 | Method and apparatus for increasing the response sensitivity and the interference resistance in an alarm system | Karla Oberstein | 1985-04-30 |
| 4503395 | Method and circuit arrangement for measuring a magnetic field | Wolfgang Kratzer | 1985-03-05 |
| 4416067 | Correction method and device for a magnetic field probe | Hartmut Scherer | 1983-11-22 |
| 4286117 | Danger alarm system | Karlheinz Schreyer | 1981-08-25 |
| 4254411 | Danger alarm system | Otto W. Moser | 1981-03-03 |