Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312857 | Door actuation system and method | Timothy R. Schmidt, Karl J. Kobel, Robert Johnson, Matthew Chapman | 2025-05-27 |
| 8839558 | Sealing assembly for a swing door | Peter Heidrich | 2014-09-23 |
| 8291644 | Locking mechanism for pneumatic differential engine for power-operated doors | Gennady Plavnik, Michael O'Neill, David C. Griffis, Peter Heidrich | 2012-10-23 |