Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8147008 | Interlock system for multi-door enclosures | Anteneh Guebre-Tsadik, Joseph D. Ricke, Jason Curtis Nygaard, Steven Lyle Ruud | 2012-04-03 |
| 7275770 | Interlock system for enclosures | Anteneh Guebre-Tsadik, Robert M. Kalstabakken, Joseph D. Ricke | 2007-10-02 |