Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7731922 | Apparatus and method for cleaning, neutralizing carbon monoxide and recirculating exhaust air in a confined environment | — | 2010-06-08 |
| 7252807 | Apparatus and method for cleaning, neutralizing and recirculating exhaust air in a confined environment | — | 2007-08-07 |
| 6797246 | Apparatus and method for cleaning, neutralizing and recirculating exhaust air in a confined environment | — | 2004-09-28 |
| 4306387 | Controllable insulating effects by selective interposition of insulating particles in a cavity of an energy transmission panel assembly | Patrick C. Hardee | 1981-12-22 |