Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10364128 | Method of installing a vertically extending member in an elevator system | Valery Sheynkman, Richard S. Blakelock, Douglas B. LaBrecque, Craig A. Buckley, William J. Derwin | 2019-07-30 |
| 9604823 | Assembly for roping an elevator | Valery Sheynkman, Richard S. Blakelock, Douglas B. LaBrecque, Craig A. Buckley, William J. Derwin | 2017-03-28 |
| 7857115 | Device for working on an escalator | Douglas B. LeBrecque, Craig A. Buckley, Thomas R. Charney, Richard S. Blakelock | 2010-12-28 |
| 5894911 | Car door locking system | Ali Bozorgzadeh, Frank E. Dyer, John Joseph Faup, Jesse R. Richter, Frank P. Morrisino +1 more | 1999-04-20 |
| 4919227 | Tamper resistant speaker grille for intercom module | — | 1990-04-24 |