Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4264904 | Fire and absence detection and alarm system for bed occupants | James C. Mathis | 1981-04-28 |
| 4195287 | Fire and absence detection and alarm system for bed occupants | James C. Mathis | 1980-03-25 |