Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601679 | Two-part wireless communications system for elevator hallway fixtures | David Crenella, Michael Gozzo, Richard Robert Grzybowski, Jeffrey M. Izard, Robert G. Morgan | 2003-08-05 |
| 6488128 | Integrated shaft sensor for load measurement and torque control in elevators and escalators | — | 2002-12-03 |
| 6202797 | Automatic protection of elevator mechanics | Steven M. Skolnick, Frank Sansevero | 2001-03-20 |
| 5509505 | Arrangement for detecting elevator car position | Rudolph Steger, Michael Garfinkel | 1996-04-23 |
| 5040640 | Piezoresistive elevator button | Robert Bryan Leach | 1991-08-20 |
| 5036321 | Capacitive sensing, solid state touch button system | Robert Bryan Leach, Jean Youla | 1991-07-30 |