ClassID:

90768

C07C9/04 - CPC Classification

Classification description:

Aliphatic saturated hydrocarbons with one to four carbon atoms Methane

Recent Application in this class:
#1
20260054254
2026-02-26

DEHYDROGENATION REACTION CATALYST

#2
20250361453
2025-11-27

Processes and Systems for Reforming of Methane and Light Hydrocarbons to Liquid Hydrocarbon Fuels

#3
20250282697
2025-09-11

METHOD FOR PRODUCING HYDROCARBON AND METHOD FOR PRODUCING SILICON CARBIDE

#4
20250223246
2025-07-10

GAS SEPARATION SYSTEM AND METHOD FOR PRODUCING METHANE-ENRICHED GAS

#5
20250011258
2025-01-09

SYSTEMS AND METHODS FOR HYDROCARBON PROCESSING

#6
20240360021
2024-10-31

BIOGAS PRODUCTION SYSTEM USING ORGANIC WASTE

#7
20240300873
2024-09-12

SYSTEM, APPARATUS, AND METHOD FOR HYDROCARBON PROCESSING

#8
20240246885
2024-07-25

METHOD OF PRODUCING HYDROCARBON AND APPARATUS FOR PRODUCING HYDROCARBON

#9
20230348800
2023-11-02

PROCESSES AND SYSTEMS FOR REFORMING OF METHANE AND LIGHT HYDROCARBONS TO LIQUID HYDROCARBON FUELS

#10
20230339747
2023-10-26

SYNGAS STAGE FOR CHEMICAL SYNTHESIS PLANT

#11
20230234013
2023-07-27

METHANATION REACTION DEVICE USING ENDOTHERMIC REACTION FOR REMOVAL OF REACTION HEAT AND REGENERATION PROCESS FOR HEAT-ABSORBING MATERIAL

#12
20230114967
2023-04-13

Hydrocarbon Production System, and Production Method and Operation Method Thereof

#13
20230093127
2023-03-23

Method for Producing Fuel Gas

#14
20230086982
2023-03-23

Method and system for compressing gas

#15
20220306553
2022-09-29

System, apparatus, and method for hydrocarbon processing

#16
20210316285
2021-10-14

Bimetallic catalysts supported on zeolites for selective conversion of n-butane to ethane

#17
20210300840
2021-09-30

Process for producing acetylene and ethylene

#18
20210230005
2021-07-29

Energy-efficient system and method for carbon dioxide conversion

#19
20210205755
2021-07-08

Method and apparatus for separating carbon dioxide and for utilizing carbon dioxide

#20
20210172076
2021-06-10

Electrochemical carbon dioxide converter and liquid regenerator

#21
20210172075
2021-06-10

Electrochemical carbon dioxide converter and liquid regenerator

#22
20210164113
2021-06-03

Electrochemical carbon dioxide converter and liquid regenerator

#23
20210130255
2021-05-06

Method of producing hydrocarbon and apparatus for producing hydrocarbon

#24
20210087122
2021-03-25

Integrated process for producing olefins from alkanes by hydrogen transfer

#25
20210009411
2021-01-14

Processing methane for syngas production with reduced COemissions

#26
20200392416
2020-12-17

Processes and systems for reforming of methane and light hydrocarbons to liquid hydrocarbon fuels

#27
20200123079
2020-04-23

Method of producing hydrocarbon and apparatus for producing hydrocarbon

#28
20200048159
2020-02-13

Process for producing methanol and/or methane

#29
20190382906
2019-12-19

Pulsed electrolysis with reference to the open circuit voltage

#30
20190344246
2019-11-14

METHANATION REACTION CATALYST, PRODUCING METHOD OF METHANATION REACTION CATALYST, AND PRODUCING METHOD OF METHANE

#31
20190337868
2019-11-07

METHOD OF PREPARING METHANE USING GAMMA-VALEROLACTONE

#32
20190284045
2019-09-19

Systems and methods of production of hydrogen containing compounds using products of fuel cells

#33
20190275505
2019-09-12

Catalyst and method for direct conversion of syngas to light olefins

#34
20190151825
2019-05-23

METAL/SUPPORT CATALYST FOR CONVERSION OF CARBON DIOXIDE TO METHANE

#35
20190144765
2019-05-16

Processes and systems for reforming of methane and light hydrocarbons to liquid hydrocarbon fuels

#36
20190126187
2019-05-02

Pressure swing adsorption type of gas production device

#37
20190049111
2019-02-14

Power-generation system having a combined heat and power plant and method for power generation

#38
20190047923
2019-02-14

Separation of off gases from C3 hydrocarbons in propane dehydrogenation process

#39
20190002364
2019-01-03

Photocatalytic conversion of carbon dioxide and water into substituted or unsubstituted hydrocarbon(s)

#40
20180375156
2018-12-27

Non-flammable electrolyte containing liquefied gas and lithium secondary batteries containing same

#41
20180371560
2018-12-27

Method and system for producing high-carbon DRI using syngas

#42
20180354873
2018-12-13

Production of aromatic hydrocarbons from light alkanes

#43
20180273442
2018-09-27

Methane Conversion

#44
20180265993
2018-09-20

Electrochemical carbon dioxide converter and liquid regenerator

#45
20180170829
2018-06-21

Apparatus and process for the preparation of acetylene and synthesis gas

#46
20180127336
2018-05-10

METHANE CONVERTER AND METHOD OF CONVERTING METHANE EMISSIONS

#47
20180093886
2018-04-05

Synthesis gas manufacturing method and synthesis gas manufacturing apparatus

#48
20180086985
2018-03-29

Production process and production system for producing methane / gaseous and/or liquid hydrocarbons

#49
20180079997
2018-03-22

IMPROVED BIOGAS PRODUCTION SYSTEM AND METHOD OF MANUFACTURE THEREOF

#50
20180066888
2018-03-08

Method for Electrical Energy Storage with Co-production of Liquefied Methaneous Gas

#51
20180022667
2018-01-25

Hydrocarbon Dehydrocyclization in the Presence of Carbon Dioxide

#52
20180021741
2018-01-25

Gas separation membrane, gas separation module, gas separation apparatus, and gas separation method

#53
20180021740
2018-01-25

Gas separation membrane, gas separation module, gas separation apparatus, and gas separation method

#54
20170327758
2017-11-16

Natural gas refining apparatus and system

#55
20170327378
2017-11-16

Method for the production of carbon nanotube structures

#56
20170283292
2017-10-05

Multistage Membrane Separation and Purification Process and Apparatus for Separating High Purity Methane Gas

#57
20160215149
2016-07-28

Use of hydroxyacid to reduce the localized corrosion potential of low dose hydrate inhibitors

#58
20160052837
2016-02-25

Methanation catalyst

#59
20160016135
2016-01-21

Apparatus for revaporizing gas hydrate pellets

#60
20150283534
2015-10-08

Carbon-based compositions with highly efficient volumetric gas sorption

#61
20140305407
2014-10-16

Systems, methods, and apparatuses related to the use of gas clathrates

#62
20140179810
2014-06-26

Method for reducing carbon dioxide by using sunlight and hydrogen and apparatus for same

#63
20140113811
2014-04-24

Nanostructured carbon materials for adsorption of methane and other gases

#64
20140044885
2014-02-13

Method and system for graphene formation

#65
20140005284
2014-01-02

Carbon oxides removal

#66
20130217944
2013-08-22

Removal of sulfur compounds from a gas stream

#67
20130192977
2013-08-01

Methods and systems for the reduction of molecules using diamond as a photoreduction catalyst

#68
20130192975
2013-08-01

Method of manufacturing a porous gallium (III) oxide photocatalyst for preparation of hydrocarbons

#69
20130137906
2013-05-30

Treatment of recycle gas from acid hydrogenation

#70
20130090394
2013-04-11

Process for providing hydrogen to a synthesis gas conversion reaction

#71
20130079577
2013-03-28

Autogenic reaction synthesis of photocatalysts for solar fuel generation

#72
20130060074
2013-03-07

Method for Producing High Purity Biomethane Without Adding Unacceptable Quantities of Moisture

#73
20130053585
2013-02-28

Gas separations with redox-active metal-organic frameworks

#74
20130046120
2013-02-21

Integrated process for producing ethanol

#75
20130046032
2013-02-21

Integrated process for producing ethanol from methanol

#76
20130041051
2013-02-14

METHOD FOR PRODUCING A METHANE-RICH PRODUCT GAS AND REACTOR SYSTEM USABLE FOR THAT PURPOSE

#77
20130014643
2013-01-17

FUEL GAS CONDITIONING PROCESS USING GLASSY POLYMER MEMBRANES

#78
20120322119
2012-12-20

Separation process using a polyimide membrane

#79
20120279397
2012-11-08

Air collector with functionalized ion exchange membrane for capturing ambient CO

#80
20120252999
2012-10-04

Production of chemical compounds

#81
20120238647
2012-09-20

Methanation reaction methods utilizing enhanced catalyst formulations and methods of preparing enhanced methanation catalysts

#82
20120208903
2012-08-16

Method for conversion of carbon dioxide to methane using visible and near infra-red light

#83
20120193099
2012-08-02

TEMPERATURE LIMITED HEATER UTILIZING NON-FERROMAGNETIC CONDUCTOR

#84
20120190893
2012-07-26

Tertiary amine salt additives for hydrate control

#85
20120184632
2012-07-19

Synthesis gas methanation process and apparatus

#86
20120178833
2012-07-12

Process for the production of methane

#87
20120172604
2012-07-05

Oxazolidinium compounds

#88
20120148481
2012-06-14

Process for the co-production of superheated steam and methane

#89
20120083637
2012-04-05

Regeneration of metal-containing catalysts

#90
20120079852
2012-04-05

Systems and Methods for Removing Heavy Hydrocarbons and Acid Gases From a Hydrocarbon Gas Stream

#91
20120079849
2012-04-05

REMOVAL OF HYDROGEN

#92
20120078021
2012-03-29

Anti-agglomerate gas hydrate inhibitors for use in petroleum and natural gas systems

#93
20120051989
2012-03-01

REMOVAL OF ACID GASES FROM A FLUID FLOW BY MEANS OF REDUCED COABSORPTION OF HYDROCARBONS AND OXYGEN

#94
20120040471
2012-02-16

Zn4(OH)2(1,2,4-BTC)2—a rod packing microporous metal-organic framework with open metal sites for selective separation and sensing of small molecules

#95
20120029095
2012-02-02

Sabatier process and apparatus for controlling exothermic reaction

#96
20110305961
2011-12-15

Process for treating a flue gas

#97
20110303413
2011-12-15

Methods and systems for producing fluid from an in situ conversion process

#98
20110288185
2011-11-24

LARGE SCALE GREEN MANUFACTURING OF METHANE USING PLASMA

#99
20110217747
2011-09-08

Landfill methane enhancement process

#100
20110213041
2011-09-01

METHOD FOR MANUFACTURING UNSATURATED HYDROCARBON AND OXYGENATED COMPOUND, CATALYST, AND MANUFACTURING METHOD THEREFOR

#101
20110209614
2011-09-01

Air collector with functionalized ion exchange membrane for capturing ambient CO

#102
20110178335
2011-07-21

Use of formate-based porous metal organic frameworks for methane storage

#103
20110170843
2011-07-14

Grouped exposed metal heaters

#104
20110162975
2011-07-07

THE PRODUCTION OF HYDROGEN, OXYGEN AND HYDROCARBONS

#105
20110160511
2011-06-30

Gas adsorption and gas mixture separations using porous organic polymer

#106
20110112202
2011-05-12

HYDRODENITROGENATION OF HYDROCARBON COMPOUNDS CONTAINING NITRILE OR AMINE FUNCTIONS

#107
20110098368
2011-04-28

CONTROLLING SYNTHESIS OF METAL SULFIDE CATALYSTS

#108
20110082310
2011-04-07

Production of nitrile compounds

#109
20110015057
2011-01-20

Membranes for highly selective separations

#110
20100228069
2010-09-09

Removal of carbon dioxide from paraffins

#111
20100168257
2010-07-01

METAL-DOPED NICKEL OXIDES AS CATALYSTS FOR THE METHANATION OF CARBON MONOXIDE

#112
20100162627
2010-07-01

Process for producing a methane-rich gas

#113
20100154637
2010-06-24

Process for the purification of gaseous mixtures containing mercaptans and other acid gases

#114
20100071410
2010-03-25

DISTILLATION PROCESS USING MICROCHANNEL TECHNOLOGY

#115
20100063343
2010-03-11

PROCESS FOR THE PURIFICATION OF METHANE GAS

#116
20100004495
2010-01-07

PROCESS FOR PRODUCING CARBON DIOXIDE AND METHANE BY CATALYTIC GAS REACTION

#117
20090287028
2009-11-19

Process for production of gas hydrate

#118
20090259076
2009-10-15

Process for converting a carbonaceous material to methane, methanol and/or dimethyl ether using microchannel process technology

#119
20090247800
2009-10-01

Process for hydrogenating olefins

#120
20090111959
2009-04-30

High silica DDR-type molecular sieve, its synthesis and use

#121
20090042998
2009-02-12

Catalyst for methanation of carbon oxides, preparation method of the catalyst and process for the methanation

#122
20080282892
2008-11-20

Low mesopore adsorbent contactors for use in swing adsorption processes

#123
20080282612
2008-11-20

Process and apparatus for the purification of methane rich gas streams

#124
20080256977
2008-10-23

Hydrocarbon recovery and light product purity when processing gases with physical solvents

#125
20080221227
2008-09-11

Process and catalyst for hydrogenation of carbon oxides

#126
20080217321
2008-09-11

Temperature limited heater utilizing non-ferromagnetic conductor

#127
20080072496
2008-03-27

Method for Producing Fuel from Captured Carbon Dioxide

#128
20070299288
2007-12-27

Process for the synthetic generation of methane

#129
20070261551
2007-11-15

Separation of carbon dioxide from other gases

#130
20070217982
2007-09-20

Air collector with functionalized ion exchange membrane for capturing ambient CO

#131
20070144732
2007-06-28

Low temperature barriers for use with in situ processes

#132
20070137857
2007-06-21

Low temperature monitoring system for subsurface barriers

#133
20070137856
2007-06-21

Double barrier system for an in situ conversion process

#134
20070133961
2007-06-14

Methods and systems for producing fluid from an in situ conversion process

#135
20070133960
2007-06-14

In situ conversion process systems utilizing wellbores in at least two regions of a formation

#136
20070133959
2007-06-14

Grouped exposed metal heaters

#137
20070119098
2007-05-31

Treatment of gas from an in situ conversion process

#138
20070108200
2007-05-17

Low temperature barrier wellbores formed using water flushing

#139
20070083072
2007-04-12

Catalytic steam gasification of petroleum coke to methane

#140
20070060659
2007-03-15

Method for the production of hydrogen-containing gaseous mixtures

#141
20070049648
2007-03-01

MANUFACTURE OF FUELS BY A CO-GENERATION CYCLE

#142
20070045268
2007-03-01

Varying properties along lengths of temperature limited heaters

#143
20070045267
2007-03-01

Subsurface connection methods for subsurface heaters

#144
20070045266
2007-03-01

In situ conversion process utilizing a closed loop heating system

#145
20070045265
2007-03-01

Low temperature barriers with heat interceptor wells for in situ processes

#146
20070006732
2007-01-11

Integrated heavy hydrocarbon removal, amine treating and dehydration

#147
20070006729
2007-01-11

Integrated heavy hydrocarbon removal, amine treating and dehydration

#148
20060162554
2006-07-27

Method and system for separating a component from a multi-component gas

#149
20060111602
2006-05-25

Removing diamondoid components from natural gas at reduced temperatures

#150
20060079725
2006-04-13

Membranes for highly selective separations

#151
20060043000
2006-03-02

Combined use of external and internal solvents in processing gases containing light, medium and heavy components

#152
20060016215
2006-01-26

Distillation process using microchannel technology

#153
20050096211
2005-05-05

Catalyst for the conversion of carbon monoxide

#154
20050045030
2005-03-03

Process for separating nitrogen from methane using microchannel process technology

#155
20050042166
2005-02-24

Method for the production of hydrogen-containing gaseous mixtures

#156
16224396
2019-10-08

Hydromethanation of a carbonaceous feedstock with improved carbon utilization and power generation

#157
16171858
2019-07-09

Hydromethanation of a carbonaceous feedstock with improved carbon utilization

#158
15710529
2018-08-21

Process for recovery of cracker feed from dry gas