Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7810636 | Conveyor chain | — | 2010-10-12 |
| 7613654 | Use of electronic devices for money transfer | Richard Rosen, Robert G. Schwartz, Brian Leary | 2009-11-03 |
| 7546916 | Curved band conveyor | — | 2009-06-16 |
| 4803976 | Sighting instrument | Robert Frigg, Paul Gisin, Stephan M. Perren, Gebhard Ritter | 1989-02-14 |