Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40001 | Jack shaft garage door operator | James S. Chang, David J. Miller | 2008-01-15 |
| 6956199 | Method and apparatus for determining a position of a movable barrier | Alan Smith, Christopher M. Valente, Martin Rathgeber, James J. Fitzgibbon | 2005-10-18 |
| 6878927 | Method and apparatus for determining a position of a movable barrier | Alan Smith, Christopher M. Valente, Martin Rathgebe, James J. Fitzgibbon | 2005-04-12 |
| 6828745 | Method and apparatus for programming a logic board from switching power | Christopher M. Valente, James J. Fitzgibbon, Ramon Tam, Martin Rathgeber | 2004-12-07 |
| 6495821 | Method and apparatus for determining a position of a movable barrier | Dane Smith, Chris M. Valente, Martin Rathgeber | 2002-12-17 |
| 6400112 | Bi-directional pass-point system for controlling the operation of movable barriers | James J. Fitzgibbon, Christopher M. Valente, Colin B. Willmott, Martin Rathgeber, Ramon Tam +1 more | 2002-06-04 |
| 6376832 | Method and apparatus for determining a position of a movable barrier | Alan Smith, Christopher M. Valente, Martin Rathgeber, James J. Fitzgibbon | 2002-04-23 |
| 6133703 | Bi-directional pass-point system for controlling the operation of movable barriers | James J. Fitzgibbon, Christopher M. Valente, Colin B. Willmott, Martin Rathgeber, Ramon Tam +1 more | 2000-10-17 |
| 6078159 | Method and apparatus for programming a logic board from switching power | Christopher M. Valente, James J. Fitzgibbon, Martin Rathgeber, Ramon Tam | 2000-06-20 |
| 5743046 | Jack shaft door garage operator | James S. Chang, David J. Miller | 1998-04-28 |
| D391507 | Garage door keyless entry system | Loren E. Doppelt, Gary F. Prokop, Marianne Grisdale, Mark Dziersk | 1998-03-03 |
| 5299678 | Limit switch mechanism for garage door opener | James S. Chang, Douglas R. Turner | 1994-04-05 |
| 5176582 | Chain guide for overhead door opener | James S. Chang | 1993-01-05 |