Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6530176 | System for locking a sliding door | — | 2003-03-11 |
| 6375562 | Sliding door | — | 2002-04-23 |
| 6079162 | Partition forming a draft-free fire barrier; and a draft-free fire barrier; and, further, methods of their operation | — | 2000-06-27 |
| 5987817 | Revolving door | — | 1999-11-23 |
| 5247763 | Automatic sliding door | — | 1993-09-28 |
| 5127190 | Sliding door | Ulrich Theile | 1992-07-07 |