Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5927705 | Envelope feeder | Christopher Chee, William Joseph Thornhill | 1999-07-27 |
| 4232318 | Duplex microwave radio communication system | Gunter Biethan, Peter Kloeber | 1980-11-04 |
| 4209749 | Railway communication system | Peter Kloeber, Johann A. Steinkamp | 1980-06-24 |