C02F 1/14
Using solar energy
Official title: using solar energy
C02F1/14 (Using solar energy) appears on 605 US grants and 655 published applications in this corpus.
Search patents in C02F- Granted patents
- 605
- Published applications
- 655
- Assignees
- 316
- Inventors
- 1,276
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 13 | 0 |
| 1979 | 13 | 0 |
| 1980 | 23 | 0 |
| 1981 | 6 | 0 |
| 1982 | 18 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 7 |
| 2003 | 4 | 12 |
| 2004 | 6 | 9 |
| 2005 | 1 | 9 |
| 2006 | 4 | 12 |
| 2007 | 3 | 9 |
| 2008 | 4 | 20 |
| 2009 | 11 | 14 |
| 2010 | 8 | 20 |
| 2011 | 10 | 27 |
| 2012 | 9 | 33 |
| 2013 | 14 | 17 |
| 2014 | 17 | 37 |
| 2015 | 17 | 27 |
| 2016 | 15 | 31 |
| 2017 | 18 | 30 |
| 2018 | 29 | 49 |
| 2019 | 30 | 40 |
| 2020 | 45 | 37 |
| 2021 | 35 | 39 |
| 2022 | 38 | 41 |
| 2023 | 31 | 34 |
| 2024 | 39 | 57 |
| 2025 | 28 | 20 |
| 2026 | 21 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Preparation method of high-efficiency gel for seawater desalination6 Oct 2026US 12,752,249 B2Shanghai Maritime University
- Resonant thermal oscillator to improve output of a thermo-fluidic system22 Sep 2026US 12,741,232 B2William Marsh Rice University
- Water treatment plant1 Sep 2026US 12,722,101 B2
- Utilizing alternative energy for water purification, water disposal, industrial heat, and electricity18 Aug 2026US 12,709,553 B2Katz Water Tech, LLC
- Water distiller4 Aug 2026US 12,698,218 B2Groasis IP B.V.
- Device and system for water desalinization1 Oct 2026US 2026/0296926 A1
- Interfacial evaporation device for evaporation ponds24 Sep 2026US 2026/0284547 A1Saudi Arabian Oil Company
- Systems and methods of draw solution recovery with energy saving evaporation supporting forward osmosis membrane crystallization17 Sep 2026US 2026/0274715 A1Fluid Technology Solutions (Fts), Inc.
- Water evaporation and mineral extraction devices17 Sep 2026US 2026/0274727 A1The Trustees of Princeton University
- Closed-loop water system with integrated atmospheric water generation and greywater recycling17 Sep 2026US 2026/0274729 A1
Most cited
By later US patents
- Diffusion driven desalination apparatus and process88US 6,919,000 B2University of Florida · 2005
- Thermal gradient humidification-dehumidification desalination system87US 4,363,703 AInstitute of Gas Technology · 1982
- Method and apparatus for simultaneous heat and mass transfer76US 4,832,115 AAlbers Technologies Corporation · 1989
- Submerged rotating heat exchanger-reactor75US 5,132,090 A1992
- Diffusion driven water purification apparatus and process75US 7,225,620 B2University of Florida Research Foundation, Inc. · 2007