Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6144161 | Microcomputer controlled photocell unit | Arthur Y. Arellanes | 2000-11-07 |
| 6121875 | Monitoring and alerting system for buildings | Dennis Hamm | 2000-09-19 |
| 5774052 | Monitoring and alerting system for buildings | Dennis Hamm | 1998-06-30 |