Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9308492 | Method and system for using an ozone generating device for air purification | Timothy N. Obee, Stephen O. Hay, Meredith B. Colket, III | 2016-04-12 |
| 8795588 | Systems and methods for removal of contaminants from fluid streams | Zissis A. Dardas, Norberto O. Lemcoff, Stephen O. Hay, Timothy N. Obee, Foster P. Lamm +5 more | 2014-08-05 |
| 8263012 | Photocatalyst protection | Stephen O. Hay, Norberto O. Lemcoff, Timothy N. Obee, Wayde R. Schmidt | 2012-09-11 |
| 8123837 | Siloxane resistant ultra violet photocatalysts | Hongmei Wen, Thomas Henry Vanderspurt, Susanne M. Opalka | 2012-02-28 |
| 7740810 | Photocatalyst protection | Stephen O. Hay, Norberto O. Lemcoff, Timothy N. Obee, Wayde R. Schmidt | 2010-06-22 |
| 7186290 | Filter system with automatic media refresh | Darren Sheehan, Robert Chiang, Brad Reisfeld | 2007-03-06 |
| 4486298 | Adsorptive demetalation of heavy petroleum residua | Emmerson Bowes, Malvina Farcasiu, Eric Scott | 1984-12-04 |
| 4243539 | Antioxidant stabilized lubricant compositions | Malvina Farcasiu | 1981-01-06 |