Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5018616 | Balanced self adjustable escalator handrail drive | James A. Rivera | 1991-05-28 |
| 4998613 | Self adjustable escalator handrail drive | James A. Rivera | 1991-03-12 |
| 4982829 | Flexible escalator handrail | Dat Nguyen | 1991-01-08 |
| 4953685 | Step chain for curved escalator | — | 1990-09-04 |
| 4946020 | Low friction escalator handrail guide | James A. Rivera | 1990-08-07 |
| 4901839 | Self adjustable escalator handrail drive | James A. Rivera | 1990-02-20 |
| 4895239 | Curved escalator with fixed center constant radius path of travel | Frank Sansevero, Dat Nguyen | 1990-01-23 |
| 4551880 | Vertical workpiece cleanser and dryer | — | 1985-11-12 |
| 4534460 | Chain-driven pocket elevator | James T. Graham | 1985-08-13 |