Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8006805 | Astragal construction | Darryl Greenaway, Steven P. Reynolds, Richard W. Lajeunesse, Zygmunt Dziwak | 2011-08-30 |
| 7156210 | Freight elevator landing door control | Steven P. Reynolds, Richard W. Lajeunesse, Zygmunt Dziwak | 2007-01-02 |
| 7097003 | Elevator landing door broken chain safety device | Steven P. Reynolds, Richard W. Lajeunesse, Zygmunt Dziwak | 2006-08-29 |