Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12157686 | Systems and methods for sanitizing pool and spa water | Arthur W. Johnson, III, James Murdock, James Carter | 2024-12-03 |
| 11091924 | Systems and methods for controlling chlorinators | Patrick C. Chen, Douglas Sawyer, JR., Michael Nilsson | 2021-08-17 |
| 10934184 | Systems and methods for sanitizing pool and spa water | Arthur W. Johnson, III, James Murdock, James Carter | 2021-03-02 |
| 9885193 | Systems and methods for controlling chlorinators | Patrick C. Chen, Douglas Sawyer, JR., Michael Nilsson | 2018-02-06 |
| 8161579 | Toilet tank mounted odor eliminator | Rolf Engelhard | 2012-04-24 |
| 8066941 | Apparatus and method for purifying water in a storage tank | Rolf Engelhard | 2011-11-29 |
| 8066940 | Apparatus and method for removing arsenic and inorganic compositions from water | Rolf Engelhard | 2011-11-29 |
| 8048316 | Method and apparatus for reducing microorganisms in water | — | 2011-11-01 |
| 7794608 | Apparatus and method for treating water with ozone | Rolf Engelhard | 2010-09-14 |
| 7384626 | Functionalized dendritic polymers for the capture and neutralization of biological and chemical agents | Arjan Giaya, Yoojeong Kim, Lawino Kagumba, Fengying Shi | 2008-06-10 |
| 7055823 | Cards | — | 2006-06-06 |
| 6680026 | Fluid flow diverters and diversion methods and water purification equipment including such diverters | Alvin Costa, Daniel Nelsen, Michael Pereira, Justin Sirotin, Michael Vieira +1 more | 2004-01-20 |
| 6312604 | Lanthanide halide water treatment compositions and methods | Ernest Senderov, Joseph W. Grenier, Therese R. Souza | 2001-11-06 |
| 6254894 | Silver self-regulating water purification compositions and methods | John D. Rafter, Mark A. Bollinger, Joseph W. Grenier, Therese R. Souza | 2001-07-03 |
| 6217780 | Biocidal compositions for treating water | Ernest Senderov, Joseph W. Grenier | 2001-04-17 |
| 6200487 | In-line, in-pool water purification system | Alvin Costa, Daniel Nelsen, Aidan Petrie | 2001-03-13 |
| 6165358 | Water purifier for a spa | John D. Rafter, Mark A. Bollinger | 2000-12-26 |
| 6093422 | Biocidal compositions for treating water | Ernest Senderov, Joseph W. Grenier | 2000-07-25 |
| 6019893 | Water purifier for a spa | John D. Rafter, Mark A. Bollinger | 2000-02-01 |
| D412963 | Water purifier | Daniel Nelsen, Roger Gagnon, Stephen Lane, Aidan Petrie | 1999-08-17 |
| 5935609 | Self-regulating water purification composition | John D. Rafter, Mark A. Bollinger | 1999-08-10 |
| 5882512 | Automatic swimming pool cleaners and associated components and systems | Roger Gagnon, Chris A. Rice | 1999-03-16 |
| D406314 | Water purifier | Roger Gagnon, Stephen Lane, Daniel Nelsen, Aidan Petrie | 1999-03-02 |
| D405867 | Water purifier | Roger Gagnon, Stephen Lane, Daniel Nelsen, Aidan Petrie | 1999-02-16 |
| D405868 | Water purifier | Roger Gagnon, Stephen Lane, Daniel Nelsen, Aidan Petrie | 1999-02-16 |