Description
Class C02F : TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Subclass 1/26: Treatment of water, waste water, or sewage (C02F 3/00-C02F 9/00 take precedence) by extraction
C02F 1/26
Sub-Class
Stats
- 226 US PATENTS IN FORCE
- 74 US APPLICATIONS PENDING
- 92 Total Patent Owners
- 924 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 |
| 12227434 | Humic and fulvic black water based beverage for human consumption | Dec 12, 23 | Feb 18, 25 | Not available |
| 12221671 | Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese | May 21, 20 | Feb 11, 25 | TERRALITHIUM LLC |
| 12220685 | Solid-phase extraction material, and preparation method and use thereof | May 06, 22 | Feb 11, 25 | Nanjing University |
| 12209034 | Temperature swing solvent extraction for descaling of feedstreams | Apr 06, 23 | Jan 28, 25 | The Trustees of Columbia University in the City of New York |
| 12187625 | Zero liquid discharge eutectic freeze desalination with intermediate cold liquid | Nov 11, 20 | Jan 07, 25 | The Board of Regents of the University of Oklahoma |
| 12187629 | emissions | May 24, 23 | Jan 07, 25 | UNITED ARAB EMIRATES UNIVERSITY |
| 12186705 | Modularized subsea seawater desalination system | Oct 14, 19 | Jan 07, 25 | Waterise AS |
| 12186729 | System and method for manufacturing diester-based composition | Jul 02, 20 | Jan 07, 25 | LG Chem, Ltd. |
| 12180093 | Temperature swing solvent extraction for descaling of feedstreams | Jun 15, 21 | Dec 31, 24 | The Trustees of Columbia University in the City of New York |
| 12180427 | Composition and method for improved desalter brine quality | Jul 08, 20 | Dec 31, 24 | Not available |
| 12172919 | Deconstruction of oilsand materials using ionic liquids | Dec 20, 21 | Dec 24, 24 | CHEYENNE MANAGEMENT CORP |
| 12168615 | Method and system for sustainable brine treatment and heavy metal purification using recycled carbon fiber | Mar 05, 24 | Dec 17, 24 | United Arab Emirates University |
| 12168748 | Treated geothermal brine compositions with reduced concentration of silica, iron and lithium | Aug 31, 22 | Dec 17, 24 | TERRALITHIUM LLC |
| 12162780 | Desalination systems and methods | Dec 02, 20 | Dec 10, 24 | Not available |
| 12157929 | Integrated lithium extraction | Feb 03, 21 | Dec 03, 24 | Schlumberger Technology Corporation |
| 12145863 | System and process for obtaining potable water employing geothermal energy | May 04, 22 | Nov 19, 24 | Not available |
| 12134571 | Systems and methods for desalination of liquids | Nov 27, 23 | Nov 05, 24 | ACQUOLINA IL MONDO, LLC |
| 12129190 | Desalination plant | Dec 16, 23 | Oct 29, 24 | MARC Water Services, LLC |
| 12121868 | Doubly porous multi-layer desal membrane | Mar 13, 24 | Oct 22, 24 | King Fahd University of Petroleum and Minerals |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0091,906 | TEMPERATURE SWING SOLVENT EXTRACTION FOR DESCALING OF FEEDSTREAMS | Dec 05, 24 | Mar 20, 25 | Columbia University/The Trustees of Columbia University in the City of New York |
| 2025/0091,914 | SYSTEM FOR TREATING BRINE AND CAPTURING CO2 EMISSIONS | Nov 27, 24 | Mar 20, 25 | Not available |
| 2025/0091,922 | PRODUCTION OF SYNTHETIC HYDROCARBONS | Nov 29, 24 | Mar 20, 25 | Not available |
| 2025/0084,321 | COMPOSITION AND METHOD FOR IMPROVED DESALTER BRINE QUALITY | Nov 22, 24 | Mar 13, 25 | Not available |
| 2025/0075,343 | CRUDE OIL PROCESSING PLANT WASTEWATER TREATMENT WITH CO-PRODUCTION OF HYDROGEN FOR CLEAN ENERGY | Aug 30, 23 | Mar 06, 25 | Not available |
| 2025/0065,292 | SYSTEM AND METHOD FOR PREPARING DIESTER-BASED COMPOSITION | Nov 08, 24 | Feb 27, 25 | Not available |
| 2025/0059,067 | Systems, Methods, and Compositions for Purifying Water | Aug 30, 24 | Feb 20, 25 | Battelle Memorial lnstitute |
| 2025/0035,081 | WAVE-ACTUATED SYSTEM, WAVE ENERGY CONVERTER SUBSYSTEM, AND METHOD FOR OPERATING A REVERSE-OSMOSIS DESALINATION SUBSYSTEM | Nov 26, 21 | Jan 30, 25 | Not available |
| 2025/0010,247 | POROUS SUBSTRATES CONTAINING AMINE-MODIFIED CARBON NANOTUBES | Jul 07, 23 | Jan 09, 25 | Saudi Arabian Oil Company; King Fahd University of Petroleum & Minerals; |
| 2024/0391,800 | HYPERSALINE DESALINATION USING IONIC LIQUIDS AND LOW-TEMPERATURE HEAT | Sep 19, 22 | Nov 28, 24 | Not available |
| 2024/0367,087 | SYSTEM AND METHOD OF WATER PURIFICATION UTILIZING AN IONOMER MEMBRANE | May 20, 24 | Nov 07, 24 | Not available |
| 2024/0368,000 | CARBON REMOVAL FROM SEAWATER AND OTHER LIQUIDS USING PHOTOACTIVE COMPOUNDS | Jun 23, 22 | Nov 07, 24 | University of Washington |
| 2024/0368,001 | SALT RECOVERY SOLUTION AND PROCESSES OF USE THEREOF | Apr 25, 24 | Nov 07, 24 | Not available |
| 2024/0336,497 | METHOD FOR OPERATING PURE-WATER PRODUCTION SYSTEM | Mar 17, 22 | Oct 10, 24 | Kurita Water Industries LTD |
| 2024/0327,257 | Gated Electrodialysis with Zero Liquid Discharge | Mar 30, 23 | Oct 03, 24 | Not available |
| 2024/0317,611 | DESALINATION METHOD OF ION MICRO-NANO SIEVING FOR AGRICULTURAL WATER | Aug 21, 23 | Sep 26, 24 | Zhejiang University |
| 2024/0300,889 | MATERIALS AND METHODS FOR IODINE CAPTURE | Jun 29, 23 | Sep 12, 24 | The University of Houston System |
| 2024/0271,026 | TREATED GEOTHERMAL BRINE COMPOSITIONS WITH REDUCED CONCENTRATION OF SILICA, IRON AND LITHIUM | Mar 20, 24 | Aug 15, 24 | TERRALITHIUM LLC |
| 2024/0262,715 | DESALINATION SYSTEM AND DESALINATION PROCESS THEREFOR | Jan 25, 23 | Aug 08, 24 | King Fahd University of Petroleum and Minerals |
| 2024/0252,952 | Natural Deep Eutectic Extractions | Jan 31, 24 | Aug 01, 24 | Bioeutectics Corporation |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 27 Months (last 2 years Issuances)
- 27 Months (last 5 years Issuances)