Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5274202 | Elevator dispatching accommodating interfloor traffic and employing a variable number of elevator cars in up-peak | Jeremy B. Kezer | 1993-12-28 |
| 4830439 | Separable scraper bar attachment for track-type vehicles | Robert E. Clark | 1989-05-16 |