Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009021 | Emergency call panel for hospital communication system | Paul David Langstroth | 2011-08-30 |
| 7994900 | Mini-dome, nurse call visual communication system | Paul David Langstroth | 2011-08-09 |