Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6364066 | Remote rescue of trapped elevator passengers | James R. Bolch, Barry G. Blackaby | 2002-04-02 |
| 6269910 | Elevator rescue system | Richard N. Fargo, Gerard Sirigu, Helmut Schroder-Brumloop, Barry G. Blackaby | 2001-08-07 |
| 6196355 | Elevator rescue system | Richard N. Fargo, Gerard Sirigu, Helmut Schroder-Brumloop, Barry G. Blackaby | 2001-03-06 |
| 6145454 | Tangentially-fired furnace having reduced NOx emissions | — | 2000-11-14 |