Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722475 | Elevator safety plank assembly | Michael G. Miller | 2004-04-20 |
| 6659231 | Self-balancing synchronization assembly for a hydraulic elevator | Eileen W. Rossman | 2003-12-09 |
| 6653943 | Suspension rope wear detector | Miles P. Lamb | 2003-11-25 |
| 6431322 | Plunger guide for a telescopic jack in a hydraulic elevator | Eileen W. Rossman | 2002-08-13 |
| 6098759 | Hydraulic elevator | Eileen W. Rossman, Scott Carlton Conrey | 2000-08-08 |
| 4926974 | Elevator car with improved car door clutch | Arnold M. Morris, Daphne D'Zurko, Richard H. Pilsbury, J. Warren Barkell, Jr. | 1990-05-22 |
| 4924974 | Elevator system having hall lantern assembly for elevator car door post of hatch door post | Randall Lawson | 1990-05-15 |
| 4749061 | Elevator cab | Paul L. Baldwin | 1988-06-07 |
| 4726449 | Elevator cab and door strike post construction therefor | Paul L. Baldwin, Larry M. Markle | 1988-02-23 |
| 4712651 | Elevator cab | Edward F. Sherwood | 1987-12-15 |
| 4711322 | Elevator cab | Paul L. Baldwin | 1987-12-08 |
| 4708223 | Emergency lighting for elevator cab | Paul L. Baldwin | 1987-11-24 |
| 4699251 | Elevator cab | Paul L. Baldwin, Larry M. Markle | 1987-10-13 |
| 4635756 | Elevator cab | Edward F. Sherwood, Paul L. Baldwin, Charles M. Dillon | 1987-01-13 |
| 4570754 | Elevator cab with retractable buttons for protective pads | Edward F. Sherwood | 1986-02-18 |
| 4514946 | Architrave | Edward F. Sherwood, Charles M. Dillon | 1985-05-07 |
| 4394809 | Coreless hung panel assembly | Edward F. Sherwood | 1983-07-26 |