Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270231 | Motorized latch retraction with return boost | Paul R. Arlinghaus, Suresha Chandrasekhara, Eric Hoiland | 2025-04-08 |
| 11891839 | Exit device systems and methods | Paul R. Arlinghaus, Jack R. Lehner, Jr., Matthew A. Phillips, Suresha Chandrasekhara, Mohammed Maksood Ali | 2024-02-06 |
| 11459798 | Exit device systems and methods | Paul R. Arlinghaus, Jack R. Lehner, Jr., Matthew A. Phillips, Suresha Chandrasekhara, Mohammed Maksood Ali | 2022-10-04 |
| 11332961 | Motorized latch retraction with return boost | Paul R. Arlinghaus, Suresha Chandrasekhara, Eric Hoiland | 2022-05-17 |
| 10968664 | Exit device systems and methods | Paul R. Arlinghaus, Jack R. Lehner, Jr. | 2021-04-06 |
| 4443072 | Purged window apparatus utilizing heated purge gas | — | 1984-04-17 |