Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9170584 | Water circulation system valve assemblies having water temperature control | Ken Lum | 2015-10-27 |
| 9139985 | Method and system for controlled release of hot water from a fixture | Ken Lum | 2015-09-22 |
| 8820653 | Water control fixture having bypass valve | Ken Lum | 2014-09-02 |
| 8820652 | Bypass valve for a water circulation system | Ken Lum | 2014-09-02 |
| 8522814 | Water control valve assembly | Ken Lum | 2013-09-03 |
| 8505830 | Water control fixture having bypass valve | Ken Lum | 2013-08-13 |
| 8434510 | Water circulation system valve assemblies having water temperature control | Ken Lum | 2013-05-07 |
| 8231064 | Water control fixture having auxiliary functions | Ken Lum | 2012-07-31 |
| 8210441 | Water control fixture having a failed closed bypass valve | Ken Lum | 2012-07-03 |
| 8091793 | Water control fixture having bypass valve | Ken Lum | 2012-01-10 |
| 7971601 | Water circulation system valve assemblies having water temperature control | Ken Lum | 2011-07-05 |
| 7874498 | Water control fixture having thermostatically controlled bypass valve | Ken Lum | 2011-01-25 |
| 7740182 | Method and system for controlled release of hot water from a fixture | Ken Lum | 2010-06-22 |
| 7648078 | Water control fixture having bypass valve | Ken Lum | 2010-01-19 |
| 7475703 | Thermostatically controlled bypass valve | Ken Lum | 2009-01-13 |
| 7287707 | Water control fixture having thermostatically controlled bypass valve | Ken Lum | 2007-10-30 |
| 7198059 | Apparatus and system for retrofitting water control valves | Ken Lum | 2007-04-03 |
| 7140382 | Water circulating system having thermostatically controlled bypass valve | Ken Lum | 2006-11-28 |
| 7073528 | Water pump and thermostatically controlled bypass valve | Ken Lum | 2006-07-11 |
| 6929187 | Water control fixture having thermostatically controlled bypass valve | Ken Lum | 2005-08-16 |
| 6736735 | Sports swing training apparatus | Michael Galanis, William C. Hughes | 2004-05-18 |
| 6536464 | Thermostatically controlled bypass valve and water circulating system for same | Ken Lum, Keith Harris | 2003-03-25 |
| RE36805 | Wheelchair lift with linkage assembly and hinged connection joint | — | 2000-08-01 |
| 6082976 | Circulating pump | Kjeld Hellegaard, Ken Lum | 2000-07-04 |
| 5433580 | Wheelchair lift with hinged connection joint | — | 1995-07-18 |