Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6400112 | Bi-directional pass-point system for controlling the operation of movable barriers | James J. Fitzgibbon, Colin B. Willmott, Mark D. Siegler, Martin Rathgeber, Ramon Tam +1 more | 2002-06-04 |
| 6376832 | Method and apparatus for determining a position of a movable barrier | Alan Smith, Martin Rathgeber, Mark D. Siegler, James J. Fitzgibbon | 2002-04-23 |