Y02A 20/411
Water saving techniques at user level
Y02A20/411 (Water saving techniques at user level) appears on 59 US grants and 76 published applications in this corpus.
Search patents in Y02A- Granted patents
- 59
- Published applications
- 76
- Assignees
- 39
- Inventors
- 137
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 5 |
| 2010 | 3 | 3 |
| 2011 | 2 | 4 |
| 2012 | 2 | 8 |
| 2013 | 1 | 6 |
| 2014 | 5 | 0 |
| 2015 | 5 | 2 |
| 2016 | 4 | 5 |
| 2017 | 1 | 8 |
| 2018 | 5 | 5 |
| 2019 | 6 | 6 |
| 2020 | 3 | 4 |
| 2021 | 1 | 4 |
| 2022 | 2 | 2 |
| 2023 | 3 | 2 |
| 2024 | 1 | 1 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Switching-type water saving valve1 Jul 2025US 12,345,031 B2Neoperl GmbH
- Faucet10 Jun 2025US 12,325,986 B2Xiamen Lota International Co., Ltd.
- Microbubble-producing water outlet assembly22 Apr 2025US 12,280,389 B2Purity (Xiamen) Sanitary Ware Co., Ltd.
- Faucet apparatus6 Feb 2024US 11,891,785 B2Toto Ltd.
- Device for a shower, consisting of a housing, a temperature controller, an LCD screen, a LED ring, two opening taps; a hot and cold water inlet; a three-way valve, a flowmeter connected to a pump; a thermostatic valve, a servomotor; and an integrated circuit card; method5 Dec 2023US 11,834,814 B2Eco Shower SPA
- Faucet water discharge control method, faucet water discharge control system, and storage medium20 Feb 2025US 2025/0059742 A1Bisource Hardware Manufacturing Co., Ltd.
- Faucet15 Aug 2024US 2024/0271399 A1Xiamen Lota International Co., Ltd.
- Easy-to-switch water outflow device25 May 2023US 2023/0158516 A1Fujian Onlytop Sanitaryware Co.,Ltd.
- Switching-type water saving valve9 Feb 2023US 2023/0039121 A1Neoperl GmbH
- Microbubble-Producing Water Outlet Assembly29 Dec 2022US 2022/0410190 A1Purity (Xiamen) Sanitary Ware Co., Ltd.
Most cited
By later US patents
- Smart device and system for improved domestic use and saving of water48US 6,895,985 B2Computerized Smart Faucet Ltd. · 2005
- Spout for foaming and saving water33US 7,677,473 B2Highplus International Co., Ltd. · 2010
- Water control fixture having thermostatically controlled bypass valve32US 6,929,187 B2Grundfos Pumps Manufacturing Corporation · 2005
- Selectable control energy and water conservation system24US 6,039,067 A2000
- Water circulating system having thermostatically controlled bypass valve23US 7,140,382 B2Grundfos Pumps Corporation · 2006