Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7306422 | Dual function inboard barrier/bridgeplate assembly for wheelchair lifts | James Robert Dupuy, Alfred L. Budd, Barry E. Wolff | 2007-12-11 |
| 6739824 | Dual function inboard barrier/bridgeplate assembly for wheelchair lifts | James Robert Dupuy, Alfred L. Budd, Barry E. Wolff | 2004-05-25 |
| 6692217 | Liftable platform having isolated hydraulically-moveable rollstop | — | 2004-02-17 |
| 6599079 | Apparatus for locking a wheelchair lift in the stowed position | Jeffrey J. Hermanson, Russell G. Antrim, Alfred L. Budd, Ned McCormick | 2003-07-29 |
| 6464447 | Dual function inboard barrier/bridgeplate assembly for wheelchair lifts | James Robert Dupuy, Alfred L. Budd, Barry E. Wolff | 2002-10-15 |
| 6238169 | Dual function inboard barrier/bridgeplate assembly for wheelchair lifts | James Robert Dupuy, Alfred L. Budd, Barry E. Wolff | 2001-05-29 |
| 6065924 | Wheelchair lift platform having internal gas spring deployment from stowage position | Alfred L. Budd, Barry E. Wolff, James Robert Dupuy | 2000-05-23 |
| 5806632 | Spring assist system for gravity deployment of stowed platform wheelchair lifter | Alfred L. Budd, Barry E. Wolff | 1998-09-15 |
| 5320135 | Flow compensator valve | — | 1994-06-14 |