Description
Class C02F : TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Subclass 1/14: Treatment of water, waste water, or sewage (C02F 3/00-C02F 9/00 take precedence) by heating by distillation or evaporation using solar energy
C02F 1/14
Sub-Class
Stats
- 290 US PATENTS IN FORCE
- 84 US APPLICATIONS PENDING
- 58 Total Patent Owners
- 766 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12264085 | Device and system for water desalinization | May 30, 24 | Apr 01, 25 | Not available |
| 12257550 | Thermal vapor compression membrane distillation hybrid using vapor selective membranes | Nov 23, 21 | Mar 25, 25 | Purdue Research Foundation |
| 12246973 | Solar still water treatment using carbon-based effervescent tablets and related methods | May 16, 24 | Mar 11, 25 | Kuwait University |
| 12195349 | Preparation method and application of amorphous metal oxide hollow multi-shell material | Jun 25, 21 | Jan 14, 25 | Institute of Process Engineering Chinese Academy of Sciences |
| 12195359 | Photothermal seawater desalination material with multi-stage structure and preparation method and use thereof | Nov 03, 21 | Jan 14, 25 | Shandong University of Science and Technology |
| 12195360 | High-efficiency solar multi-layer evaporative seawater desalination device | Feb 23, 22 | Jan 14, 25 | China Institute of Water Resources and Hydropower Research |
| 12172103 | Anti-biofouling magnetic silk fibroin (SF)-based composite aerogel, and preparation method and use thereof | Dec 18, 23 | Dec 24, 24 | Hefei University of Technology |
| 12157683 | Composite material and a water purifying system | Jan 07, 22 | Dec 03, 24 | City University of Hong Kong |
| 12139419 | Solar powered water purification system | Apr 25, 24 | Nov 12, 24 | Not available |
| 12134046 | Efficient water purification system and method | Jul 07, 21 | Nov 05, 24 | Not available |
| 12115465 | System and method for sustainable production of water and salt | Feb 01, 24 | Oct 15, 24 | KING FAISAL UNIVERSITY |
| 12110377 | Aerogel with hierarchical pore structure formed using pulsed laser technology, and preparation method and use thereof | Nov 30, 23 | Oct 08, 24 | OCEAN UNIVERSITY OF CHINA |
| 12091329 | Water desalination by using compact and portable solar still with high efficiency | Sep 27, 23 | Sep 17, 24 | King Saud University |
| 12084371 | Systems and methods for solar thermal osmosis desalination | Apr 07, 22 | Sep 10, 24 | The University of South Florida |
| 12071349 | Composite aerogel based on graphdiyne motif arrangement and preparation method thereof | Dec 27, 23 | Aug 27, 24 | University of Science and Technology Beijing |
| 12065362 | Vacuum assisted liquid separation system | Apr 17, 23 | Aug 20, 24 | Not available |
| 12053714 | Photothermal evaporation material integrating light absorption and thermal insulation, preparation application thereof, use thereof | Dec 20, 19 | Aug 06, 24 | ZHEJIANG UNIVERSITY |
| 12053715 | Self-contained photovoltaic distillation apparatus | May 03, 22 | Aug 06, 24 | Not available |
| 12054402 | Water harvesting systems, and methods of using thereof | Jan 22, 20 | Aug 06, 24 | Water Harvesting Inc. |
| 12049411 | Systems for humidification dehumidification that use waste heat extracted from abandoned wells | Dec 14, 22 | Jul 30, 24 | Saudi Arabian Oil Company |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0100,902 | EFFLUENT LIQUID EVAPORATOR | Sep 23, 24 | Mar 27, 25 | Not available |
| 2025/0042,774 | Passive Freezing Desalination Driven By Radiative Cooling | Apr 27, 23 | Feb 06, 25 | The Regents of the University of California |
| 2025/0020,320 | STRUCTURES FOR SOLAR VAPOR EVAPORATION AND CONDENSATION | Nov 21, 22 | Jan 16, 25 | Not available |
| 2024/0410,624 | SYSTEM FOR RESTORATION OF A SALTY BODY OF WATER THAT HARNESSES HYDRO, SOLAR, AND GEOTHERMAL ENERGY, TO BE USED IN REMOTE LOCATIONS AND DIFFERENT APPLICATIONS INCLUDING THE PRODUCTION OF DISTILLED WATER FROM A SALTY BODY OF WATER | Jun 14, 24 | Dec 12, 24 | Not available |
| 2024/0401,844 | SOLAR ENERGY COLLECTOR AND CONCENTRATOR SYSTEM | Oct 26, 21 | Dec 05, 24 | Not available |
| 2024/0400,414 | WATER PURIFICATION | Oct 03, 22 | Dec 05, 24 | Not available |
| 2024/0390,815 | SELF-CONTAINED PHOTOVOLTAIC DISTILLATION APPARATUS | Aug 06, 24 | Nov 28, 24 | Not available |
| 2024/0391,798 | Water Harvesting Systems, And Methods Of Using Thereof | Aug 05, 24 | Nov 28, 24 | Water Harvesting, Inc. |
| 2024/0382,866 | DEVICES AND SYSTEMS FOR TREATING WATER AND OTHER FLUIDS | Apr 30, 24 | Nov 21, 24 | Undesert Corporation |
| 2024/0367,087 | SYSTEM AND METHOD OF WATER PURIFICATION UTILIZING AN IONOMER MEMBRANE | May 20, 24 | Nov 07, 24 | Not available |
| 2024/0351,915 | METHOD FOR PRODUCING FRESH WATER FROM AQUEOUS SALT SOLUTIONS | Aug 23, 22 | Oct 24, 24 | ECOSTAR-NAUTECH CO., LTD. |
| 2024/0336,494 | SYSTEM AND METHOD FOR SOLAR VAPOR EVAPORATION AND CONDENSATION | Sep 20, 22 | Oct 10, 24 | Not available |
| 2024/0336,826 | PLASMONIC MATERIAL, A SOLAR ABSORBER CONTAINING THE PLASMONIC MATERIALS, PREPARATION AND APPLICATION THEREOF | Aug 15, 23 | Oct 10, 24 | Not available |
| 2024/0299,862 | APPARATUS AND METHOD OF OBTAINING POTABLE WATER FROM IMPURE WATER SOURCE | Mar 09, 23 | Sep 12, 24 | Not available |
| 2024/0278,145 | WATER TREATMENT PLANT | Jun 09, 22 | Aug 22, 24 | Not available |
| 2024/0278,186 | PREPARATION METHOD, PRODUCT AND APPLICATION OF HYDROPHOBICALLY MODIFIED MEMBRANE BASED ON MULTI-EFFECT THERMAL ENERGY CONVERSION | Jan 25, 24 | Aug 22, 24 | Not available |
| 2024/0262,715 | DESALINATION SYSTEM AND DESALINATION PROCESS THEREFOR | Jan 25, 23 | Aug 08, 24 | King Fahd University of Petroleum and Minerals |
| 2024/0228,297 | COMPOSITE AEROGEL BASED ON GRAPHDIYNE MOTIF ARRANGEMENT AND PREPARATION METHOD THEREOF | Dec 27, 23 | Jul 11, 24 | Not available |
| 2024/0165,574 | Preparation Method Of High-Efficiency Gel For Seawater Desalination | Aug 29, 23 | May 23, 24 | Shanghai Maritime University |
| 2024/0150,199 | INDUSTRIAL WASTE TREATMENT PROCESS AND SYSTEM | Mar 07, 22 | May 09, 24 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 25 Months (last 2 years Issuances)
- 25 Months (last 5 years Issuances)