Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012412 | Method and device for purifying ambient air and surfaces | James Normark, Allen Johnston | 2011-09-06 |
| 7871518 | Apparatus for treating wash water supplied | Walter B. Ellis, Ronald Fink, R. Paul Beam | 2011-01-18 |
| 7166259 | Air purifier with control sensors | R. Paul Beam, James Normark, David Michael Sutton, Tom Greene | 2007-01-23 |