Methane

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CPC
C12P5/023

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CCHEMISTRY METALLURGY C12Biochemistry C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE C12P5/00Preparation of hydrocarbons or halogenated hydrocarbons

Current Industry

C12P5/023Methane

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Recovery of methane from solid digestates
- Patent number 12,338,477
- Issue date Jun 24, 2025
- L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GE...
- Aude Bertrandias
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
System and method for carbon dioxide reactor control
- Patent number 12,320,022
- Issue date Jun 3, 2025
- Twelve Benefit Corporation
- Nicholas H. Flanders
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method and system for producing a fuel from biogas
- Patent number 12,312,547
- Issue date May 27, 2025
- Iogen Corporation
- Patrick J. Foody
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Microbial consortium for enhancing the methane production from feed...
- Patent number 12,305,163
- Issue date May 20, 2025
- Indian Oil Corporation Limited
- Manoj Kumar
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
System and method for carbon dioxide reactor control
- Patent number 12,286,716
- Issue date Apr 29, 2025
- Twelve Benefit Corporation
- Nicholas H. Flanders
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Systems and methods for processing mixed solid waste
- Patent number 12,280,408
- Issue date Apr 22, 2025
- UPLAND ROAD IP HOLDCO LLC
- George Gitschel
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for cyclic biochemical conversion of carbon dioxide and hot...
- Patent number 12,264,353
- Issue date Apr 1, 2025
- SOUTHWEST PETROLEUM UNIVERSITY
- Zhengmeng Hou
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Method for promoting anaerobic digestion using carbonyl iron
- Patent number 12,258,604
- Issue date Mar 25, 2025
- INSTITUTE OF AGRICULTURAL RESOURCES AND REGIONAL PLANNING, CHINESE ACADEMY OF...
- Junting Pan
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method and system for producing a fuel from biogas
- Patent number 12,241,036
- Issue date Mar 4, 2025
- Iogen Corporation
- Patrick J. Foody
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Use of oxyhydrogen microorganisms for non-photosynthetic carbon cap...
- Patent number 12,234,497
- Issue date Feb 25, 2025
- Kiverdi, Inc.
- John S. Reed
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
High solids alkaline oxidation and biomethane conversion of residua...
- Patent number 12,234,603
- Issue date Feb 25, 2025
- Robert C. Casad
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Conversion of lignocellulosic biomass into biogas
- Patent number 12,221,643
- Issue date Feb 11, 2025
- Jaron C. Hansen
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Biogas production from excrement
- Patent number 12,139,739
- Issue date Nov 12, 2024
- Lakeside Power and Methane, LLC
- Mahmoud A. El-Massri
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Method for producing renewable fuels
- Patent number 12,122,673
- Issue date Oct 22, 2024
- Iogen Corporation
- Brian Foody
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Molecular switches
- Patent number 12,091,667
- Issue date Sep 17, 2024
- PRECIGEN, INC.
- Mark Anton Held
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Method for improving efficiency of anaerobic fermentation in medium...
- Patent number 12,060,595
- Issue date Aug 13, 2024
- WELLE ENVIRONMENTAL GROUP CO., LTD.
- Yuezhong Li
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Jute filters to reduce ammonia inhibition effects of chicken manure...
- Patent number 12,037,626
- Issue date Jul 16, 2024
- KING FAISAL UNIVERSITY
- Muhammad Aamir
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of producing a synthetic diamond
- Patent number 12,037,703
- Issue date Jul 16, 2024
- ECOTRICITY GROUP LIMITED
- Dale Vince
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Transgenic maize plant exhibiting increased yield and drought toler...
- Patent number 12,012,608
- Issue date Jun 18, 2024
- KWS SAAT SE & CO. KGAA
- Karl Pioch
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Balanced system and method for production of microbial output
- Patent number 11,999,940
- Issue date Jun 4, 2024
- Tenfold Technologies, LLC
- Robert Chisholm
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method for municipal solid waste reclamation
- Patent number 11,981,878
- Issue date May 14, 2024
- ECONWARD TECH.
- Rubén García Cano
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Jute filters to reduce ammonia inhibition effects of chicken manure...
- Patent number 11,981,949
- Issue date May 14, 2024
- KING FAISAL UNIVERSITY
- Muhammad Aamir
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Bioreactor insert and biofilm support, related apparatus and relate...
- Patent number 11,970,684
- Issue date Apr 30, 2024
- The Regents of the University of Michigan
- Steven Skerlos
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Methods and microorganisms for making 2,3-butanediol and derivative...
- Patent number 11,939,584
- Issue date Mar 26, 2024
- PRECIGEN, INC.
- Xinhua Zhao
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
System and method for improved anaerobic digestion
- Patent number 11,932,563
- Issue date Mar 19, 2024
- TOPSTONE VENTURES, LLC
- Christopher J. Barry
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Synthesis and oxidation of methane
- Patent number 11,920,171
- Issue date Mar 5, 2024
- Auburn University
- Steven Mansoorabadi
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Method for producing biogas from waste liquid/residue after diosgen...
- Patent number 11,920,176
- Issue date Mar 5, 2024
- SOUTH CHINA AGRICULTURAL UNIVERSITY
- Jun Xie
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Electromethanogenesis reactor
- Patent number 11,905,503
- Issue date Feb 20, 2024
- Lawrence Livermore National Security, LLC
- Jennifer Marie Knipe
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Solubilization of MSW with blend enzymes
- Patent number 11,884,955
- Issue date Jan 30, 2024
- RENESCIENCE A/S
- Hanne Risbjerg Soerensen
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Solubilization of MSW with blend enzymes
- Patent number 11,873,522
- Issue date Jan 16, 2024
- RENESCIENCE A/S
- Hanne Risbjerg Soerensen
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...

Patents Applicationslast 30 patents

Information Patent Application
ANAEROBIC MICROORGANISM METABOLISM FOR CAPTURE OF DILUTE CARBON DIO...
- Publication number 20250207156
- Publication date Jun 26, 2025
- The Board of Trustees of the Leland Stanford Junior University
- Grace Elizabeth Callander
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
ANAEROBIC DIGESTION OF AT LEAST ONE STILLAGE COMPOSITION, AND RELAT...
- Publication number 20250197893
- Publication date Jun 19, 2025
- POET RESEARCH, INC.
- Brady Christopher Clavel
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
PROCESS AND/OR FACILITY INTEGRATION OF ANAEROBIC DIGESTION OF ONE O...
- Publication number 20250197894
- Publication date Jun 19, 2025
- POET RESEARCH, INC.
- David Charles Carlson
- C01 - INORGANIC CHEMISTRY
Information Patent Application
WASTE TREATMENT SYSTEM AND WASTE TREATMENT METHOD
- Publication number 20250197309
- Publication date Jun 19, 2025
- Mitsubishi Heavy Industries, Ltd.
- Atsuhiro YUKUMOTO
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR REMOVING AND IMMOBILISING CARBON DIOXIDE FROM THE ATMOSP...
- Publication number 20250187913
- Publication date Jun 12, 2025
- FLD TECHNOLOGIES GMBH
- Marek FULDE
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
PROCESS FOR PRODUCING FERMENTATION PRODUCTS AND BIOGAS FROM STARCH-...
- Publication number 20250188496
- Publication date Jun 12, 2025
- NOVOZYMES A/S
- Lindsey TUCKER
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
RESOURCE RECYCLING METHOD AND RESOURCE RECYCLING MANAGEMENT METHOD
- Publication number 20250163476
- Publication date May 22, 2025
- Kubota Corporation
- Futoshi MIZUTANI
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
RESOURCE RECYCLING METHOD
- Publication number 20250154077
- Publication date May 15, 2025
- Kubota Corporation
- Futoshi MIZUTANI
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
ELECTROCHEMICAL SYSTEM FOR CARBON DIOXIDE CAPTURE
- Publication number 20250108330
- Publication date Apr 3, 2025
- 12272580 Canada Inc.
- Qinhong Cai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CONVERSION OF FEEDSTOCKS INTO BIOGAS
- Publication number 20250092428
- Publication date Mar 20, 2025
- Lee Duane Hansen
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
METHOD AND SYSTEM FOR PRODUCING A FUEL FROM BIOGAS
- Publication number 20250084334
- Publication date Mar 13, 2025
- Iogen Corporation
- Patrick J. Foody
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD AND APPARATUS FOR BIOLOGICAL PRODUCTION OF ELECTRO-METHANE
- Publication number 20250084443
- Publication date Mar 13, 2025
- BioGasclean A/S
- Peter Thygesen
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
NOVEL PRETREATMENT FOR RECALCITRANT BIOMASS FOR BIOGAS GENERATION
- Publication number 20250051806
- Publication date Feb 13, 2025
- SixRing Inc.
- Corynne O'Farrell
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
METHOD FOR ENHANCED BIOGAS GENERATION
- Publication number 20250051807
- Publication date Feb 13, 2025
- SixRing Inc.
- Corynne O'Farrell
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
BIOMETHANATION DEVICE AND ASSOCIATED METHOD
- Publication number 20250051808
- Publication date Feb 13, 2025
- SUEZ INTERNATIONAL
- Mathieu HADDAD
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
SYSTEM AND METHOD FOR PRODUCING PRODUCT GAS COMPRISING METHANE
- Publication number 20250034598
- Publication date Jan 30, 2025
- Nature Energy Biogas A/S
- Martin Dan JEPPESEN
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
MOLECULAR SWITCHES
- Publication number 20250027093
- Publication date Jan 23, 2025
- Precigen, Inc.
- Mark Anton HELD
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
A PROCESS TO TREAT A CARBON DIOXIDE COMPRISING GAS
- Publication number 20250019726
- Publication date Jan 16, 2025
- Paqell B.V.
- Dandan LIU
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
METHOD FOR PRODUCING RENEWABLE FUELS
- Publication number 20250019236
- Publication date Jan 16, 2025
- Iogen Corporation
- Brian Foody
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HYBRID-ELECTRIC PROCESS AND/OR SYSTEM FOR PRODUCING HYDROGEN
- Publication number 20250019235
- Publication date Jan 16, 2025
- Iogen Corporation
- Brian Foody
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
METHOD FOR PROMOTING ANAEROBIC DIGESTION USING CARBONYL IRON
- Publication number 20250011820
- Publication date Jan 9, 2025
- INSTITUTE OF AGRICULTURAL RESOURCES AND REGIONAL PLANNING, CHINESE ACADEMY OF...
- Junting PAN
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
METHOD FOR PRODUCING PRODUCT GAS COMPRISING METHANE
- Publication number 20250011819
- Publication date Jan 9, 2025
- Nature Energy Biogas A/S
- Martin Dan JEPPESEN
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
SYSTEMS AND METHODS FOR THE PRODUCTION OF BIOGASES FROM A LIGNOCELL...
- Publication number 20250002951
- Publication date Jan 2, 2025
- The Penn State Research Foundation
- John Michael REGAN
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
COMPOSITIONS AND METHODS UTILIZING ALTERNATIVE SOURCES OF CARBON DI...
- Publication number 20240425412
- Publication date Dec 26, 2024
- CarbonCure Technologies Inc.
- Dean Paul FORGERON
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
BIOGAS COLLECTION APPARATUS AND METHOD OF USE
- Publication number 20240425887
- Publication date Dec 26, 2024
- Nicholas Stutzman
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
PROCESSES FOR FIXATION OF CARBON DIOXIDE
- Publication number 20240417758
- Publication date Dec 19, 2024
- JUPENG BIO (HK) LIMITED
- Ryan Senaratne
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
PROCESSES FOR FIXATION OF CARBON DIOXIDE
- Publication number 20240417759
- Publication date Dec 19, 2024
- JUPENG BIO (HK) LIMITED
- Ryan Senaratne
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
PRODUCTION OF SYNTHETIC HYDROCARBONS
- Publication number 20240400908
- Publication date Dec 5, 2024
- Arcadia eFuels US Inc.
- Jeroen Harrie MOORS
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
METHOD AND PLANT FOR PROCESSING BIOLOGICAL SUBSTRATE
- Publication number 20240368635
- Publication date Nov 7, 2024
- Schmack Biogas Service GmbH
- Edgar HÖSLER
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
METHOD FOR THE PRODUCTION OF HIGH PURITY BIOGASES FROM A LIGNOCELLU...
- Publication number 20240368636
- Publication date Nov 7, 2024
- The Penn State Research Foundation
- John Michael REGAN
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Recovery of methane from solid digestates

System and method for carbon dioxide reactor control

Method and system for producing a fuel from biogas

Microbial consortium for enhancing the methane production from feed...

System and method for carbon dioxide reactor control

Systems and methods for processing mixed solid waste

Method for cyclic biochemical conversion of carbon dioxide and hot...

Method for promoting anaerobic digestion using carbonyl iron

Method and system for producing a fuel from biogas

Use of oxyhydrogen microorganisms for non-photosynthetic carbon cap...

High solids alkaline oxidation and biomethane conversion of residua...

Conversion of lignocellulosic biomass into biogas

Biogas production from excrement

Method for producing renewable fuels

Molecular switches

Method for improving efficiency of anaerobic fermentation in medium...

Jute filters to reduce ammonia inhibition effects of chicken manure...

Method of producing a synthetic diamond

Transgenic maize plant exhibiting increased yield and drought toler...

Balanced system and method for production of microbial output

Method for municipal solid waste reclamation

Jute filters to reduce ammonia inhibition effects of chicken manure...

Bioreactor insert and biofilm support, related apparatus and relate...

Methods and microorganisms for making 2,3-butanediol and derivative...

System and method for improved anaerobic digestion

Synthesis and oxidation of methane

Method for producing biogas from waste liquid/residue after diosgen...

Electromethanogenesis reactor

Solubilization of MSW with blend enzymes

Solubilization of MSW with blend enzymes

Patents Applicationslast 30 patents

ANAEROBIC MICROORGANISM METABOLISM FOR CAPTURE OF DILUTE CARBON DIO...

ANAEROBIC DIGESTION OF AT LEAST ONE STILLAGE COMPOSITION, AND RELAT...

PROCESS AND/OR FACILITY INTEGRATION OF ANAEROBIC DIGESTION OF ONE O...

WASTE TREATMENT SYSTEM AND WASTE TREATMENT METHOD

METHOD FOR REMOVING AND IMMOBILISING CARBON DIOXIDE FROM THE ATMOSP...

PROCESS FOR PRODUCING FERMENTATION PRODUCTS AND BIOGAS FROM STARCH-...

RESOURCE RECYCLING METHOD AND RESOURCE RECYCLING MANAGEMENT METHOD

RESOURCE RECYCLING METHOD

ELECTROCHEMICAL SYSTEM FOR CARBON DIOXIDE CAPTURE

CONVERSION OF FEEDSTOCKS INTO BIOGAS

METHOD AND SYSTEM FOR PRODUCING A FUEL FROM BIOGAS

METHOD AND APPARATUS FOR BIOLOGICAL PRODUCTION OF ELECTRO-METHANE

NOVEL PRETREATMENT FOR RECALCITRANT BIOMASS FOR BIOGAS GENERATION

METHOD FOR ENHANCED BIOGAS GENERATION

BIOMETHANATION DEVICE AND ASSOCIATED METHOD

SYSTEM AND METHOD FOR PRODUCING PRODUCT GAS COMPRISING METHANE

MOLECULAR SWITCHES

A PROCESS TO TREAT A CARBON DIOXIDE COMPRISING GAS

METHOD FOR PRODUCING RENEWABLE FUELS

HYBRID-ELECTRIC PROCESS AND/OR SYSTEM FOR PRODUCING HYDROGEN

METHOD FOR PROMOTING ANAEROBIC DIGESTION USING CARBONYL IRON

METHOD FOR PRODUCING PRODUCT GAS COMPRISING METHANE

SYSTEMS AND METHODS FOR THE PRODUCTION OF BIOGASES FROM A LIGNOCELL...

COMPOSITIONS AND METHODS UTILIZING ALTERNATIVE SOURCES OF CARBON DI...

BIOGAS COLLECTION APPARATUS AND METHOD OF USE

PROCESSES FOR FIXATION OF CARBON DIOXIDE

PROCESSES FOR FIXATION OF CARBON DIOXIDE

PRODUCTION OF SYNTHETIC HYDROCARBONS

METHOD AND PLANT FOR PROCESSING BIOLOGICAL SUBSTRATE

METHOD FOR THE PRODUCTION OF HIGH PURITY BIOGASES FROM A LIGNOCELLU...