Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7892436 | Compositions and methods for removing arsenic in water | — | 2011-02-22 |
| 7820052 | Method of arsenic removal from water | — | 2010-10-26 |
| 7544636 | Treated bottom ash medium and method of arsenic removal from drinking water | — | 2009-06-09 |
| D590202 | Fuel efficient portable stove for use with a round-bottom pot | Ken P. Chow, Howdy Goudey | 2009-04-14 |
| 7217933 | UV water disinfector | Eduardas Kazakevicius, Anushka Drescher | 2007-05-15 |
| 6974958 | UV water disinfector | Eduardas Kazakevicius, Anushka Drescher | 2005-12-13 |
| 6803587 | UV water disinfector | Eduardas Kazakevicius, Anushka Drescher | 2004-10-12 |
| 6602425 | Method for low cost water disinfection | Anushka Drescher | 2003-08-05 |
| 6464884 | Portable water treatment unit | — | 2002-10-15 |
| 6419821 | Apparatus for low cost water disinfection | Anushka Drescher | 2002-07-16 |
| 5780860 | UV water disinfector | Vikas Garud | 1998-07-14 |
| 5678576 | Apparatus for treating environmental tobacco smoke (ETS) particle and gas-phase contaminants | William W. Nazaroff | 1997-10-21 |
| 5307018 | Apparatus and method to detect an impending failure of a cirucit caused by deposits of aerosol | — | 1994-04-26 |
| 5277653 | Gas flow means for improving efficiency of exhaust hoods | — | 1994-01-11 |