Patents per Year
Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5553697 | Overlay for a passenger conveyor roller track | — | 1996-09-10 | $7,627,000 |
| 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 | $4,593,000 |
| 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 | $8,511,000 |
| 5188209 | Handrail roller bow adjustment | Gerald E. Johnson, James A. Rivera | 1993-02-23 | $3,812,000 |
| 5186302 | Escalator skirt and deck panel installation | Gerald E. Johnson, James A. Rivera | 1993-02-16 | $2,880,000 |
| 5156252 | Handrail guard housing shield | Ary O. Mello, Gerald E. Johnson | 1992-10-20 | $2,471,000 |
| 5131520 | Escalator handrail guide | Gerald E. Johnson, James A. Rivera | 1992-07-21 | $5,759,000 |