Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6876457 | Light grid | Bernhard Parstorfer | 2005-04-05 |
| 6624751 | Method for monitoring an entrance to a hazardous area | Volker Rohbeck | 2003-09-23 |
| 6418546 | Circuit for checking a tristate detection circuit | Paul Hartl, Paul Haberl | 2002-07-09 |
| 5801376 | Photoelectric barrier and method for operation | Paul Haberl, Werner Lehner | 1998-09-01 |
| 5777834 | Safety switch arrangement | Werner Lehner, Paul Hartl | 1998-07-07 |