Description
Class C02F : TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Subclass 1/38: Treatment of water, waste water, or sewage (C02F 3/00-C02F 9/00 take precedence) by centrifugal separation
C02F 1/38
Sub-Class
Stats
- 487 US PATENTS IN FORCE
- 63 US APPLICATIONS PENDING
- 153 Total Patent Owners
- 1,434 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12252425 | System and method for treating evaporator blowdown | Jul 22, 20 | Mar 18, 25 | Veolia Water Technologies, Inc. |
| 12234170 | Method of purifying natural water and wastewater | Jul 31, 19 | Feb 25, 25 | Not available |
| 12235019 | Retrofit hot water heat pump | Oct 28, 22 | Feb 25, 25 | Lunar Energy, Inc. |
| 12226713 | Installation for multiple skimming | Apr 29, 20 | Feb 18, 25 | SEARAS AS |
| 12214299 | Composition, system and method for removal of detergents from aqueous solutions | May 30, 17 | Feb 04, 25 | DNA Genotek Inc. |
| 12209035 | Processes for removing oil from separated water streams | Jul 10, 18 | Jan 28, 25 | ConocoPhillips Company |
| 12209039 | Treatment of tailings streams with one or more dosages of lime, and associated systems and methods | Feb 23, 23 | Jan 28, 25 | Graymont Western Canada Inc. |
| 12187631 | Process for decontamination of hazardous sulfur compounds in sour water tanks | Sep 12, 23 | Jan 07, 25 | UNITED LABORATORIES INTERNATIONAL, LLC |
| 12172918 | Domestic sewage treatment system | Aug 19, 20 | Dec 24, 24 | Sichuan University; East China University of Science and Technology; |
| 12172919 | Deconstruction of oilsand materials using ionic liquids | Dec 20, 21 | Dec 24, 24 | CHEYENNE MANAGEMENT CORP |
| 12161955 | Disk-pack turbine | Sep 17, 23 | Dec 10, 24 | QWTIP LLC |
| 12162779 | Simultaneous optimization of fuel energy, site OPEX, waste heat recovery and dirty water treatment | Nov 08, 19 | Dec 10, 24 | HEAT IP HOLD CO, LLC |
| 12157672 | Method for recycling supercritical waste liquid generated during process of producing silica aerogel blanket | Nov 13, 18 | Dec 03, 24 | LG Chem Ltd. |
| 12157692 | Industrial wastewater treatment system and method for garment finishing, jeans and denim industry | Dec 20, 19 | Dec 03, 24 | JEANOLOGIA, S. L. |
| 12145083 | Grease recovery unit | May 27, 20 | Nov 19, 24 | The Filta Group Limited |
| 12145867 | Environmentally friendly sea water intake system | May 21, 20 | Nov 19, 24 | IDE WATER TECHNOLOGIES LTD. |
| 12134048 | Oil and grit separator system with twin vortex | Jun 15, 20 | Nov 05, 24 | Not available |
| 12110246 | Ion removal system | Feb 10, 20 | Oct 08, 24 | Panasonic Intellectual Property Management Co., Ltd. |
| 12091345 | Method for recovering phosphorus and iron and use thereof | Jan 05, 24 | Sep 17, 24 | Tsinghua Shenzhen International Graduate School |
| 12072225 | External solids level detection for a collection vessel | Aug 17, 18 | Aug 27, 24 | ENERCORP ENGINEERED SOLUTIONS INC. |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0115,504 | SYSTEM FOR TREATING PRODUCED WATER RESULTING FROM OIL EXTRACTION AND PNEUMATIC FLOCCULATION METHOD BY INJECTION OF INERT GAS INTO HEAT EXCHANGERS | Oct 07, 24 | Apr 10, 25 | Not available |
| 2025/0099,877 | Disk-Pack Turbine | Dec 09, 24 | Mar 27, 25 | Not available |
| 2025/0074,790 | ZERO LIQUID DISCHARGE EUTECTIC FREEZE DESALINATION WITH INTERMEDIATE COLD LIQUID | Nov 14, 24 | Mar 06, 25 | The Board of Regents of the University of Oklahoma |
| 2025/0066,679 | SYSTEMS, METHODS, AND DEVICES FOR PROCESSING CRUDE OIL | Dec 23, 22 | Feb 27, 25 | Enertech Holding Company KSCC |
| 2025/0058,250 | Concentric Sloping Plate Enhanced Vertical Compact Flotation Unit | May 31, 24 | Feb 20, 25 | Not available |
| 2025/0051,191 | COOLING WATER MANAGEMENT SYSTEMS HAVING CONTINUOUS BIOFILM MONITORING AND ASSOCIATED METHODS FOR USING THE SAME | Oct 25, 24 | Feb 13, 25 | Not available |
| 2025/0041,766 | PORTABLE MODULAR FILTER SYSTEM | Jul 08, 24 | Feb 06, 25 | Not available |
| 2025/0041,877 | SEPARATOR AND METHOD FOR PURIFYING A LIQUID-SOLID MIXTURE | Dec 08, 22 | Feb 06, 25 | Not available |
| 2025/0026,668 | METHOD AND APPARATUS FOR RECOVERING METHANE FROM A FLOW OF WATER | Oct 27, 22 | Jan 23, 25 | Not available |
| 2025/0019,270 | HYDROCYCLONE | Nov 15, 22 | Jan 16, 25 | Sandcatch Solutions AS |
| 2025/0001,469 | CLEAN-IN-PLACE (CIP) SYSTEM AND PROCESS | Aug 10, 22 | Jan 02, 25 | Not available |
| 2024/0425,387 | METHOD AND DEVICE FOR DESALINATING WATER | Nov 16, 22 | Dec 26, 24 | SEANERGY |
| 2024/0391,812 | Water Purification System | Aug 02, 24 | Nov 28, 24 | Not available |
| 2024/0342,632 | Intake Module for Water Treatment Systems | Jun 26, 24 | Oct 17, 24 | Not available |
| 2024/0343,614 | DEWATERING TRAILER SYSTEM | Apr 03, 24 | Oct 17, 24 | Not available |
| 2024/0316,479 | METHOD FOR SEPARATION OF PARTICLES SUSPENDED IN A FLUID | Jun 03, 24 | Sep 26, 24 | Not available |
| 2024/0318,515 | SYSTEM AND METHOD FOR PROCESSING A SLURRY | Jun 03, 24 | Sep 26, 24 | Flowback Fluids LLC |
| 2024/0300,832 | OIL-WATER MIXTURE TREATMENT DEVICE AND METHOD | Sep 29, 21 | Sep 12, 24 | Not available |
| 2024/0269,647 | SORBENT AND METHOD OF MAKING | Apr 05, 24 | Aug 15, 24 | CALGON CARBON CORPORATION |
| 2024/0189,834 | Flocculation Cyclone Device, Marine Plastic Removal System Using the Same, Ship Provided with the System, and Operation Method for the Ship | Jan 14, 22 | Jun 13, 24 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 33 Months (last 2 years Issuances)
- 33 Months (last 5 years Issuances)