Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9587752 | Backflow preventer valve | — | 2017-03-07 |
| 8997777 | Fire hydrant security integrated flow control/backflow preventer insert valve | — | 2015-04-07 |
| 8627847 | Backflow preventer valve | — | 2014-01-14 |
| RE38378 | Vehicle/aircraft security system based on vehicle displacement profile, with optional GPS/cellular discrimination indicator | — | 2004-01-06 |
| 6642844 | DIRECT DISPATCHERLESS AUTOMATIC VEHICLE-TO-VEHICLE AND NON-VEHICLE TO VEHICLE POLICE/EMERGENCY MEDICAL SERVICE NOTIFICATION SYSTEM FOR LIFE THREATENING ACCIDENTS, HIJACKINGS, THEFTS AND MEDICAL EMERGENCIES | — | 2003-11-04 |
| 5929753 | Vehicle/aircraft security system based on vehicle displacement profile, with optional GPS/cellular discrimination indicator | — | 1999-07-27 |
| 4300527 | Bi-loop heat recovery system | — | 1981-11-17 |
| 4294223 | Bi-loop heat recovery system for an oil fired furnace | — | 1981-10-13 |