Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5979565 | Emergency ventilation system for biological/chemical contamination | Kenneth M. Berry | 1999-11-09 |
| 5720659 | Fire protection system and method using dual-purpose plumbing | — | 1998-02-24 |
| 5718627 | System and method for smoke free elevator shaft | — | 1998-02-17 |
| 4380187 | Method and system for providing life-sustaining air to persons entrapped within a burning building | — | 1983-04-19 |