Issued Patents All Time
Showing 25 most recent of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428827 | Omni configured flapper systems for various flush valve sizes and methods of retrofit | Tuan Le, Leland Wong, Daniel McAuley, Jack Nguyen, Daniel McFarland +5 more | 2025-09-30 |
| 11746922 | Pneumatic lost motion/binary device system and method | Tuan Le | 2023-09-05 |
| 11713817 | Balanced activation force and bistable valve system and method | Tuan Le | 2023-08-01 |
| 11643798 | Modular fluid valve | Tuan Le, Salvador Pena | 2023-05-09 |
| 11391391 | Discharge valve system and method | Tuan Le | 2022-07-19 |
| 11142898 | Modular fluid valve | Tuan Le, Salvador Pena | 2021-10-12 |
| 11125353 | Pneumatic lost motion/binary device system and method | Tuan Le | 2021-09-21 |
| 10767766 | Discharge valve system and method | Tuan Le | 2020-09-08 |
| 9650772 | Float lock for a flush valve reservoir | Michael Lee, Kokon Zhang, Junsheng Chen | 2017-05-16 |
| 9540798 | Drain lock for a flush valve reservoir | Junsheng Chen | 2017-01-10 |
| 8250681 | Variable buoyancy setting flapper | — | 2012-08-28 |
| 8104103 | Toilet flapper flush valve assembly | — | 2012-01-31 |
| 7900290 | Dual flush refill device | — | 2011-03-08 |
| 7559337 | Retractable float for a ballcock valve | — | 2009-07-14 |
| 7374123 | Rewind mechanism | — | 2008-05-20 |
| 6901610 | High performance valve assembly for toilets | Robert M. Jensen | 2005-06-07 |
| 6837448 | Nozzle device for spraying defined areas | Giles A. Kendall | 2005-01-04 |
| 6728975 | High performance flush valve assembly | — | 2004-05-04 |
| 6715162 | Toilet assembly | Aleksandr Prokopenko, Robert M. Jensen | 2004-04-06 |
| 6604249 | Advanced dual-flush valve | John C. McKay, Tracy James Haggstrom, Farid Maiwandi | 2003-08-12 |
| 6478237 | Enclosed pop-up sprinklers with shielded impact arms | Don Michael Kearby, Giles A. Kendall, Derick C. Wright | 2002-11-12 |
| 6442772 | Advanced dual-flush valve | John C. McKay, Tracy James Haggstrom, Farid Maiwandi | 2002-09-03 |
| 6209801 | Closed-case impact sprinklers with fitted fluid seal assemblies | Don Michael Kearby, Giles A. Kendall, Derick C. Wright | 2001-04-03 |
| 6182306 | Side-mount toilet valve | — | 2001-02-06 |
| 6155493 | Closed-case impact sprinklers | Don Michael Kearby, Giles A. Kendall, Derick C. Wright | 2000-12-05 |