Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12331547 | Indicator lever | — | 2025-06-17 |
| 12281492 | Handle retention | Adam M. Litwinski, David J. Hurlbert, Zachary Jared Wiggins, Marshall Owens | 2025-04-22 |
| 12264505 | Latch holdback with electronic release | — | 2025-04-01 |
| 12181011 | Torque-limiting spindle | Adam M. Litwinski | 2024-12-31 |
| 11879266 | Auxiliary trim locking module | Nathanael Taylor, Paul J. Meisel | 2024-01-23 |
| 11834864 | Handle retention | Adam M. Litwinski, David J. Hurlbert, Zachary Jared Wiggins, Marshall Owens | 2023-12-05 |
| 11781600 | Torque-limiting spindle | Adam M. Litwinski | 2023-10-10 |
| 11603679 | Child-resistant door handle | Nathanael Taylor, Paul J. Meisel | 2023-03-14 |
| 11542725 | Indicator lever | — | 2023-01-03 |
| 11447974 | Anti-barricading turn hub assembly for a door lockset | Steven Verderaime, Adam M. Litwinski, Jonathan M. Carron | 2022-09-20 |
| 11408206 | Indicator lever | Isaiah Martinez, James D. Ohl | 2022-08-09 |
| 11326367 | Knob assembly with free-spinning ring | Paul J. Meisel, Nathanael Taylor | 2022-05-10 |
| 10626634 | Anti-barricading turn hub assembly for a door lockset | Steven Verderaime, Adam M. Litwinski, Jonathan M. Carron | 2020-04-21 |
| 10563425 | Indicator lever | — | 2020-02-18 |