Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6615898 | Release mechanism for a sectional door | — | 2003-09-09 |
| 6612357 | Impact detection system for industrial doors | Mark D. Beringer, David LEPPERT | 2003-09-02 |
| 6598648 | Industrial door system responsive to an impact | — | 2003-07-29 |
| 6560927 | Counteraction system for a sectional door | — | 2003-05-13 |