C02F 2201/009
Apparatus with independent power supply
Official title: Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
C02F2201/009 (Apparatus with independent power supply) appears on 679 US grants and 1,036 published applications in this corpus.
Search patents in C02F- Granted patents
- 679
- Published applications
- 1,036
- Assignees
- 519
- Inventors
- 1,889
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 2 |
| 2002 | 6 | 4 |
| 2003 | 5 | 4 |
| 2004 | 5 | 17 |
| 2005 | 6 | 27 |
| 2006 | 12 | 24 |
| 2007 | 11 | 15 |
| 2008 | 19 | 34 |
| 2009 | 9 | 22 |
| 2010 | 27 | 29 |
| 2011 | 16 | 41 |
| 2012 | 20 | 34 |
| 2013 | 12 | 34 |
| 2014 | 26 | 41 |
| 2015 | 23 | 30 |
| 2016 | 23 | 33 |
| 2017 | 25 | 52 |
| 2018 | 31 | 50 |
| 2019 | 44 | 59 |
| 2020 | 47 | 65 |
| 2021 | 43 | 71 |
| 2022 | 51 | 90 |
| 2023 | 50 | 85 |
| 2024 | 51 | 72 |
| 2025 | 46 | 55 |
| 2026 | 38 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid system and method of waste heat utilization-based photovoltaic power generation and seawater desalination6 Oct 2026US 12,752,240 B2Xi' An Jiaotong University
- Energy services through integrated flexible operation of wastewater systems22 Sep 2026US 12,741,886 B1The Board of Trustees of the Leland Stanford Junior University
- Method and kit for remediation of environments contaminated with halogenated organic compounds15 Sep 2026US 12,734,568 B2Photon Remediation Technology N.V.
- System for reverse osmosis and for pressure retarded osmosis8 Sep 2026US 12,728,391 B2Danfoss A/S
- Utilizing alternative energy for water purification, water disposal, industrial heat, and electricity18 Aug 2026US 12,709,553 B2Katz Water Tech, LLC
- Modular Water Disinfection System with Integrated UV-C, Ozone, and IoT Monitoring.24 Sep 2026US 2026/0285730 A1
- Water filtration system and method of use24 Sep 2026US 2026/0285731 A1Outreach Corporation
- Device body structure and water surface cleaning device17 Sep 2026US 2026/0274713 A1Shenzhen Maining Innovation Technology Co., Ltd.
- Closed-loop water system with integrated atmospheric water generation and greywater recycling17 Sep 2026US 2026/0274729 A1
- A geothermal hydrogen production and compression system20 Aug 2026US 2026/0242246 A1Good Water Energy Ltd.
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
- Hand-held ultraviolet water purification system using solid state devices102US 6,579,495 B1Hydro-Photon, Inc. · 2003
- Photocatalytic oxidation of organics using a porous titanium dioxide membrane and an efficient oxidant86US 5,779,912 ALynntech, Inc. · 1998