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Water treatment
C02F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/00
Treatment of water, waste water, or sewage
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C02F1/5236
using inorganic agents
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Patents Grants
last 30 patents
Information
Patent Grant
System for producing magnesium hydroxide
Patent number
12,364,933
Issue date
Jul 22, 2025
Mitsubishi Heavy Industries, Ltd.
Kazuhisa Takeuchi
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Ferrate based water treatment
Patent number
12,358,822
Issue date
Jul 15, 2025
CECO Environmental IP Inc.
David Barker
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method of refining and recovering barium sulfate from contaminated...
Patent number
12,358,818
Issue date
Jul 15, 2025
Chad Daloia
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method for removing heavy metal from water
Patent number
12,338,140
Issue date
Jun 24, 2025
National Chung Cheng University
Chien-Yen Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for stabilizing heavy metal and antibiotic by coupling slow...
Patent number
12,338,141
Issue date
Jun 24, 2025
Tongji University
Lan Ling
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Methods and compositions for treatment of concrete wash water
Patent number
12,330,336
Issue date
Jun 17, 2025
CarbonCure Technologies Inc.
George Sean Monkman
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Phosphorous extraction and recovery system
Patent number
12,304,843
Issue date
May 20, 2025
University of Maryland, Baltimore County
Lee Blaney
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Flocculant for catalytic decomposition of flue gas desulfurization...
Patent number
12,291,471
Issue date
May 6, 2025
CHANGZHOU UNIVERSITY
Haiqun Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Emergency treatment equipment and method for algal blooms in reserv...
Patent number
12,286,371
Issue date
Apr 29, 2025
Changjiang River Scientific Research Institute
Li Lin
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
System and method for treating evaporator blowdown
Patent number
12,252,425
Issue date
Mar 18, 2025
Veolia Water Technologies, Inc.
Mark C. Nicholson
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Solid precipitation apparatus and solid precipitation process
Patent number
12,246,972
Issue date
Mar 11, 2025
China Petroleum and Chemical Corporation
Tong Zhou
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Integrated boron removal and flocculation process for treating frac...
Patent number
12,240,776
Issue date
Mar 4, 2025
XI'AN SHIYOU UNIVERSITY
Tao Yu
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Cerium-lanthanum treatment method for reduction of contaminants in...
Patent number
12,227,440
Issue date
Feb 18, 2025
Neo Water Treatment, LLC
Pamela Leigh Cornish
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method for recycling copper-containing wastewater from micro-etching
Patent number
12,221,366
Issue date
Feb 11, 2025
Central South University
Chenyang Zhang
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Reducing undesirable emissions from sediments via treatment with lime
Patent number
12,209,041
Issue date
Jan 28, 2025
Graymont Western Canada Inc.
Nikolas Andrei Romaniuk
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Waste liquid treatment composition and waste liquid treatment method
Patent number
12,202,750
Issue date
Jan 21, 2025
Daiken Medical Co., Ltd.
Masayuki Uruma
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Polyzirconium coagulant and application thereof
Patent number
12,195,373
Issue date
Jan 14, 2025
Nanjing University
Shujuan Zhang
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Methods and compositions for treatment of concrete wash water
Patent number
12,186,938
Issue date
Jan 7, 2025
CarbonCure Technologies Inc.
George Sean Monkman
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Treatment method of wastewater containing ferricyanide complex and...
Patent number
12,187,630
Issue date
Jan 7, 2025
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
Qi Yuan
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method for recycling supercritical waste liquid generated during pr...
Patent number
12,157,672
Issue date
Dec 3, 2024
LG Chem, Ltd.
Mi Ri Kim
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Systems and methods for desalination of liquids
Patent number
12,134,571
Issue date
Nov 5, 2024
ACQUOLINA IL MONDO, LLC
Garry Bush
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Gasification and Fischer-Tropsch process waste water treatment
Patent number
12,122,701
Issue date
Oct 22, 2024
Velocys Technologies Limited
Graham Lea
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Anionic flocculant, anionic flocculant production method, and treat...
Patent number
12,122,694
Issue date
Oct 22, 2024
SUIDO KIKO KAISHA, LTD.
Takayuki Abe
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method and apparatus for treating natural gas and oil well waste wa...
Patent number
12,110,245
Issue date
Oct 8, 2024
Eau Midstream, Inc.
Francis C. Miller
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Systems and methods for dewatering slurries
Patent number
12,067,962
Issue date
Aug 20, 2024
Vermeer Manufacturing Company
Gregory Anderson
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Automated methods and systems for optimized zeta potential chemical...
Patent number
12,060,286
Issue date
Aug 13, 2024
Marmac Water LLC
Gregg Allan McLeod
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method to treat nano-filtration membrane retentate for reuse in fra...
Patent number
12,054,409
Issue date
Aug 6, 2024
Saudi Arabian Oil Company
Fahd Ibrahim AlGhunaimi
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process for treating acid mine drainage
Patent number
12,049,420
Issue date
Jul 30, 2024
UNIVERSITY OF SOUTH AFRICA
Bhekie Brilliance Mamba
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Advanced phosphorous recovery process and plant
Patent number
12,024,454
Issue date
Jul 2, 2024
Cambi Technology AS
Hans Rasmus Holte
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Methods and apparatus for controlling water hardness
Patent number
12,024,451
Issue date
Jul 2, 2024
Ecolab USA Inc.
Lee J. Monsrud
E03 - WATER SUPPLY SEWERAGE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR TREATING WASTE WATERS AND RESIDUE SLUDGE BY MEANS OF DEC...
Publication number
20250223213
Publication date
Jul 10, 2025
HYDROMECANIQUE ET FROTTEMENT
Frédéric Garcia
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHODS AND COMPOSITIONS FOR TREATMENT OF CONCRETE WASH WATER
Publication number
20250187229
Publication date
Jun 12, 2025
CarbonCure Technologies Inc.
George Sean MONKMAN
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
COMPOSITIONS AND METHODS FOR TREATING AND RECLAIMING PAINT FLUSH WASTE
Publication number
20250178942
Publication date
Jun 5, 2025
Heritage Research Group, LLC
Anthony Rogers
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
WASTEWATER TREATMENT PROCESS IN PRODUCTION OF NICKEL COBALT HYDROXIDE
Publication number
20250171342
Publication date
May 29, 2025
PT ESG NEW ENERGY MATERIAL
SATRYO SOEMANTRI BRODJONEGORO
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHOD FOR TREATING WASTE WATERS AND RESIDUE SLUDGE BY MEANS OF CAR...
Publication number
20250154033
Publication date
May 15, 2025
HYDROMECANIQUE ET FROTTEMENT
Frédéric Garcia
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METHODS OF RECOVERING BARIUM FROM PRODUCED WATER TO REMOVE SULFATES...
Publication number
20250128971
Publication date
Apr 24, 2025
Saudi Arabian Oil Company
Jian Hou
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
COMPOSITION AND METHOD FOR TREATING AND PURIFYING WATER BY MEANS OF...
Publication number
20250128972
Publication date
Apr 24, 2025
CLEAN WATER SPA
Oscar Alejandro TORRES SAAVEDRA
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHODS FOR TREATING PRODUCED WATERS
Publication number
20250115496
Publication date
Apr 10, 2025
Saudi Arabian Oil Company
Ali A. AL-YOUSEF
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
TWO-STAGE SYSTEM AND METHOD FOR TREATING FLUORIDE-CONTAINING WASTEW...
Publication number
20250115498
Publication date
Apr 10, 2025
MEGA UNION TECHNOLOGY INCORPORATED
KUO-CHING LIN
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHOD FOR REMOVING INORGANIC SUBSTANCES FROM WASTEWATER
Publication number
20250100916
Publication date
Mar 27, 2025
Industrial Technology Research Institute
Mao-Sung LEE
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHOD FOR WATER PURIFICATION THROUGH FRESH GENERATION OF FLOCCULAN...
Publication number
20250091917
Publication date
Mar 20, 2025
Tao Ye
C01 - INORGANIC CHEMISTRY
Information
Patent Application
PRODUCED WATER DESALINATION WITH FRACTIONAL FREEZE CYCLES
Publication number
20250074806
Publication date
Mar 6, 2025
Transmissive Water Services LLC
Robert Crain
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Acid Rain Diffusion Based on Vulnerable Zone Classifications
Publication number
20250019278
Publication date
Jan 16, 2025
International Business Machines Corporation
Manikandan Padmanaban
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
DEVICE AND METHOD FOR RECOVERING LITHIUM FROM LITHIUM-CONTAINING MO...
Publication number
20250011182
Publication date
Jan 9, 2025
XI’AN LANSHEN NEW MATERIAL TECHNOLOGY CO., LTD.
Zhijun FENG
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Pretreatments to Contaminated Water Prior to Hydrothermal or Superc...
Publication number
20240417291
Publication date
Dec 19, 2024
Revive Environmental Technology, LLC
Taylor Cochran
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
ACCELERATED CO2 REMOVAL BY ELECTROCHEMICAL OCEAN ALKALINITY ENHANCE...
Publication number
20240416275
Publication date
Dec 19, 2024
Xiwang Qi
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
SYSTEMS AND METHODS FOR DEWATERING SLURRIES
Publication number
20240395234
Publication date
Nov 28, 2024
Vermeer Manufacturing Company
Gregory Anderson
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
TREATMENT COMPOSITION AND METHOD FOR TREATING A WATER SYSTEM
Publication number
20240391806
Publication date
Nov 28, 2024
ECOLAB USA INC.
Mingli WEI
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
NON-TOXIC AND ENVIRONMENTALLY FRIENDLY METHOD OF RECYCLING ACID MIN...
Publication number
20240384367
Publication date
Nov 21, 2024
Materia USA LLC
YEHUDIS GOTTESFELD
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PROCESSES AND APPARATUSES FOR CONVERTING POLY- AND PERFLUOROALKYL S...
Publication number
20240336511
Publication date
Oct 10, 2024
UOP LLC
Erick J. Bennett
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
ENHANCING WATER TREATMENT RECOVERY FROM RETENTION POND AT FERTILIZE...
Publication number
20240336507
Publication date
Oct 10, 2024
Evoqua Water Technologies LLC
Simon P Dukes
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FERRATE BASED WATER TREATMENT
Publication number
20240317623
Publication date
Sep 26, 2024
CECO Environmental IP Inc.
David BARKER
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Production of H2S For Efficient Metal Removal From Effluents
Publication number
20240308889
Publication date
Sep 19, 2024
1983 LLC
Dania Valenzuela
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PROCESS OF REMOVING ALUMINUM WASTE IN WASTEWATER
Publication number
20240279085
Publication date
Aug 22, 2024
SK INNOVATION CO., LTD.
Jae Yang SONG
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
LOW COST AND SANITARY EFFICIENT METHOD THAT CREATES TWO DIFFERENT T...
Publication number
20240279086
Publication date
Aug 22, 2024
CRYSTAL LAGOONS TECHNOLOGIES, INC.
Fernando Benjamin FISCHMANN
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
TREATMENT METHOD OF WASTEWATER CONTAINING FERRICYANIDE COMPLEX AND...
Publication number
20240270613
Publication date
Aug 15, 2024
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD
Qi YUAN
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Controlled Removal of Ions from Aqueous Fluid
Publication number
20240262723
Publication date
Aug 8, 2024
The Water Company, LLC
Peter Robert Norman
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Production of Silicate Solutions and their Use in Mold and Mildew R...
Publication number
20240228305
Publication date
Jul 11, 2024
Total Alchemy Solutions, LLC
Paul W. Fairchild
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Industrialized Fish and Algae Farming System and Method with Recirc...
Publication number
20240224958
Publication date
Jul 11, 2024
Qinghai Photon Ecology Co., Ltd.
Jiarui Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
COMPOSITE FLOCCULANT FOR TREATING LOW-TEMPERATURE AND LOW-TURBIDITY...
Publication number
20240217847
Publication date
Jul 4, 2024
Jilin Jianzhu University
Zhisheng LIU
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE