Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11953487 | Apparatus for measuring water hardness using ion selective electrode | Malcolm Kahn, Robert Astle, Ravi Meruva | 2024-04-09 |
| 11391713 | Apparatus for measuring water hardness using ion selective electrode | Malcolm Kahn, Robert Astle, Ravi Meruva | 2022-07-19 |
| 11209413 | Method for determining hardness concentration using a monovalent ion selective electrode | Malcolm Kahn, Robert Astle | 2021-12-28 |
| 11139217 | Post-production substrate modification with FIB deposition | Landon J. Caley, Richard J. Ferguson | 2021-10-05 |
| 11016074 | Apparatus for measuring water hardness using ion selective electrode | Malcolm Kahn, Robert Astle, Ravi Meruva | 2021-05-25 |
| 7966097 | Method for regeneration of a water softener | — | 2011-06-21 |
| 7964103 | Computer-implemented method of monitoring the performance of a reverse osmosis membrane in a drinking water supply system | Gregory Kennedy, David Sinkula | 2011-06-21 |
| 7949747 | Method and system of communication in a wireless water treatment system | Patrick Van Oosterwijck | 2011-05-24 |
| 6696963 | Method and system for anticipating salt depletion | Gregory Kennedy, Jose Castro, Wesley F. Chapman, John E. Ziegenfuss | 2004-02-24 |
| 6503821 | Integrated circuit chip carrier assembly | Donald S. Farquhar, Lisa J. Jimarez, Michael Joseph Klodowski | 2003-01-07 |
| 6488198 | Wire bonding method and apparatus | Douglas E. Chrzanowski, John A. Welsh, James Warren Wilson | 2002-12-03 |
| 6456202 | System for monitoring the status of a water softener | James Johannsen | 2002-09-24 |
| 6329713 | Integrated circuit chip carrier assembly comprising a stiffener attached to a dielectric substrate | Donald S. Farquhar, Lisa J. Jimarez, Michael Joseph Klodowski | 2001-12-11 |
| 6284132 | Brine fill apparatus for water softener | Ralph H. Larson, Paul Myhre | 2001-09-04 |
| 6036866 | Apparatus and method for fluid treatment units connected in parallel | Dean A. Eldrenkamp | 2000-03-14 |
| 5872337 | Chip carrier and cable assembly reinforced at edges | Donald S. Farquhar, Stephen Joseph Fuerniss, Charles R. Davis, David L. Questad, Darbha Suryanarayana | 1999-02-16 |
| 5774529 | Apparatus to provide a remote display of the operating condition of a water treatment system | James Johannsen | 1998-06-30 |
| 5544072 | Method for regeneration of a water softener | Gary W. Gauer, Dave Marshall | 1996-08-06 |
| 5362383 | Self-contained reverse osmosis electronic monitoring system | Marlin Frank | 1994-11-08 |
| 5363087 | Apparatus for providing a regenerant solution to a regenerable liquid treatment medium bed | James Johannsen, Ralph A. Larson | 1994-11-08 |
| D336051 | Water softener control and indicating panel | Michael E. Drager, Dennis G. Winberg, John R. Nelson | 1993-06-01 |