Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7886879 | Method for creating temporary safety space within an elevator hoistway | Johannes Kocher | 2011-02-15 |
| 7322445 | Stop bar for creating a temporary safety space within an elevator hoistway | Johannes Kocher | 2008-01-29 |