Y02A 20/211
Solar-powered water purification
Y02A20/211 (Solar-powered water purification) appears on 120 US grants and 152 published applications in this corpus.
Search patents in Y02A- Granted patents
- 120
- Published applications
- 152
- Assignees
- 75
- Inventors
- 305
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 6 | 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 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 6 |
| 2006 | 1 | 10 |
| 2007 | 0 | 2 |
| 2008 | 6 | 6 |
| 2009 | 4 | 9 |
| 2010 | 6 | 5 |
| 2011 | 4 | 5 |
| 2012 | 4 | 13 |
| 2013 | 1 | 4 |
| 2014 | 8 | 9 |
| 2015 | 6 | 12 |
| 2016 | 8 | 8 |
| 2017 | 3 | 14 |
| 2018 | 10 | 9 |
| 2019 | 9 | 9 |
| 2020 | 9 | 9 |
| 2021 | 5 | 11 |
| 2022 | 4 | 3 |
| 2023 | 4 | 1 |
| 2024 | 2 | 3 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Water supply system for aircraft17 Jun 2025US 12,330,974 B2Nikkiso Co., Ltd.
- High-efficiency solar multi-layer evaporative seawater desalination device14 Jan 2025US 12,195,360 B2China Institute of Water Resources and Hydropower Research
- Water harvesting systems, and methods of using thereof6 Aug 2024US 12,054,402 B2Water Harvesting, Inc.
- Multifunction solar utility panels27 Feb 2024US 11,912,587 B2
- Systems and methods for generating potable water8 Aug 2023US 11,717,766 B2Aqua-Belt Technologies, LLC
- Solar energy collector and concentrator system5 Dec 2024US 2024/0401844 A1
- Water Harvesting Systems, And Methods Of Using Thereof28 Nov 2024US 2024/0391798 A1Water Harvesting, Inc.
- High-efficiency solar multi-layer evaporative seawater desalination device12 Sep 2024US 2024/0300829 A1China Institute of Water Resources and Hydropower Research
- A Floating Vessel for the Production of Potable Water16 Nov 2023US 2023/0365437 A1Barinthus Technologies BV
- Bottlecap with UV LED and a removable filter cartridge for water purification8 Dec 2022US 2022/0388873 A1
Most cited
By later US patents
- Portable, potable water recovery and dispensing apparatus198US 6,182,453 B2Worldwide Water, Inc. · 2001
- Method of an apparatus for sterilizing aqueous media, more particularly drinking water122US 4,857,204 A1989
- Portable, potable water recovery and dispensing apparatus121US 6,058,718 A2000
- Portable, potable water recovery and dispensing apparatus79US 5,669,221 AWorldwide Water, Inc. · 1997
- Portable ultraviolet water sterilizer76US 4,755,292 A1988