Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5553697 | Overlay for a passenger conveyor roller track | — | 1996-09-10 |
| 5361887 | Apparatus for detecting an irregularity in the frequency of steps passing a particular point within a passenger conveying device | Vlad Zaharia | 1994-11-08 |
| D338309 | Barrier panel for escalators | Gerald E. Johnson, James A. Rivera | 1993-08-10 |
| 5219060 | Step axle for escalator | Charles D. Diasparra, Gerald E. Johnson | 1993-06-15 |
| 5188209 | Handrail roller bow adjustment | Gerald E. Johnson, James A. Rivera | 1993-02-23 |
| 5186302 | Escalator skirt and deck panel installation | Gerald E. Johnson, James A. Rivera | 1993-02-16 |
| 5156252 | Handrail guard housing shield | Ary O. Mello, Gerald E. Johnson | 1992-10-20 |
| 5131520 | Escalator handrail guide | Gerald E. Johnson, James A. Rivera | 1992-07-21 |