ClassID:

94985

C07D307/60 - CPC Classification

Classification description:

Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms Two oxygen atoms, e.g. succinic anhydride

Recent Application in this class:
#1
20260078101
2026-03-19

RECOVERY OF MALEIC ANHYDRIDE

#2
20260076962
2026-03-19

LANTHIONINE SYNTHETASE C-LIKE 2-BASED THERAPEUTICS

#3
20250261639
2025-08-21

ZEALACTONE DERIVATIVES AS PLANT GROWTH REGULATORS

#4
20250236601
2025-07-24

PROCESS AND PRODUCTION SYSTEM FOR PREPARING SUCCINIC ANHYDRIDE BY HYDROGENATION OF MALEIC ANHYDRIDE

#5
20250109115
2025-04-03

METHOD FOR PREPARING A CYCLIC ANHYDRIDE FROM AN UNSATURATED CARBOXYLIC ACID

#6
20250042868
2025-02-06

METHOD FOR PREPARING CYCLIC ANHYDRIDE FROM A LACTONE

#7
20250042867
2025-02-06

MALEIC ANHYDRIDE HYDROGENATION PROCESS AND SUCCINIC ACID PRODUCTION PROCESS COMPRISING THE SAME

#8
20240410567
2024-12-12

DEVICE AND METHOD FOR PRODUCING HIGH-PRESSURE OR SUPER HIGH-PRESSURE STEAM AS BYPRODUCT FROM MALEIC ANHYDRIDE PRODUCING DEVICE

#9
20240405277
2024-12-05

RECHARGEABLE LITHIUM BATTERY

#10
20240391886
2024-11-28

CARBON MONOXIDE PRODRUGS FOR THE TREATMENT OF MEDICAL DISORDERS

#11
20240382937
2024-11-21

CATALYST FOR THE PARTIAL OXIDATION OF N-BUTANE TO MALEIC ANHYDRIDE

#12
20240360115
2024-10-31

COMPOSITIONS AND METHODS FOR VIRAL SENSITIZATION

#13
20240278222
2024-08-22

SHAPED CATALYST BODY WITH IMPROVED PROPERTIES, ITS PREPARATION AND USE

#14
20240208918
2024-06-27

Method for direct hydrogenation of maleic anhydride to produce 1,4-butanediol and co-produce succinic anhydride

#15
20230192609
2023-06-22

METHOD FOR PURIYFING WASTE N-METHYL-2-PYRROLIDONE

#16
20230142910
2023-05-11

LANTHIONINE SYNTHETASE C-LIKE 2-BASED THERAPEUTICS

#17
20230103608
2023-04-06

LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND DISPLAY SUBSTRATE

#18
20230054152
2023-02-23

STRIGOLACTONE ANALOGS AND METHODS OF USING

#19
20220266233
2022-08-25

NEW CATALYST SYSTEM FOR PRODUCING MALEIC ANHYDRIDE BY MEANS OF THE CATALYTIC OXIDATION OF N-BUTANE

#20
20220235153
2022-07-28

Photoinitiators for light-curable compositions

#21
20220220101
2022-07-14

Compositions and methods for viral sensitization

#22
20220089558
2022-03-24

Method for catalytically synthesizing furaneol

#23
20220037697
2022-02-03

Secondary battery and device comprising the same

#24
20210403446
2021-12-30

Integrated methods for chemical synthesis

#25
20210247401
2021-08-12

METHODS AND SYSTEMS FOR MEASURING ASCORBIC ACID

#26
20210245144
2021-08-12

Transition metal-based heterogeneous carbonylation reaction catalyst and method for preparing lactone or succinic anhydride using catalyst

#27
20210238654
2021-08-05

Method of inactivating microbes by citraconic anhydride

#28
20210238155
2021-08-05

Carbon monoxide prodrugs for the treatment of medical disorders

#29
20210079196
2021-03-18

Process of controlled chemical reaction of a solid filler material surface and additives to produce a surface treated filler material product

#30
20210046070
2021-02-18

Lanthionine synthetase C-like 2-based therapeutics

#31
20210031177
2021-02-04

Cored round trilobe shaped catalyst for producing maleic anhydride

#32
20210031160
2021-02-04

Multilayer catalytic bed for the partial oxidation of n-butane to maleic anhydride

#33
20210024462
2021-01-28

SULFAMOYL-ARYLAMIDES AND THE USE THEREOF AS MEDICAMENTS FOR THE TREATMENT OF HEPATITIS B

#34
20200391192
2020-12-17

Transition metal-based heterogeneous carbonylation reaction catalyst and method for preparing lactone or succinic anhydride using catalyst

#35
20200385328
2020-12-10

METHOD FOR PRODUCING BENZOYL FORMIC ACID COMPOUND AND PYRIDAZINE COMPOUND

#36
20200368730
2020-11-26

Oxovanadium phosphate catalyst, and preparation method and application therefor

#37
20200361891
2020-11-19

Ultra-low molecular weight imide containing quaternary ammonium salts having short hydrocarbon tails

#38
20200354351
2020-11-12

Compositions and methods for viral sensitization

#39
20200331878
2020-10-22

Continuous carbonylation processes

#40
20200331877
2020-10-22

Catalyst recycle methods

#41
20200308127
2020-10-01

Production of sulfonyl azide anhydride

#42
20200298199
2020-09-24

Flexible chemical production method

#43
20200261447
2020-08-20

Lanthionine synthetase C-like 2-based therapeutics

#44
20200255373
2020-08-13

SULFAMOYL-ARYLAMIDES AND THE USE THEREOF AS MEDICAMENTS FOR THE TREATMENT OF HEPATITIS B

#45
20200231531
2020-07-23

Photoinitiators for light-curable compositions

#46
20200222893
2020-07-16

Process for producing a VPO catalyst

#47
20200172396
2020-06-04

Integrated methods for chemical synthesis

#48
20200164353
2020-05-28

Compositions and methods for selective carbonylation of heterocyclic compounds

#49
20200102279
2020-04-02

Process for the synthesis of firocoxib

#50
20200071286
2020-03-05

UTILIZATION OF NORMAL CARBON 4 (NC4) RECYCLE STREAM FOR SECONDARY AND TERTIARY PRODUCTS

#51
20200046694
2020-02-13

Lanthionine synthetase C-like 2-based therapeutics

#52
20200030280
2020-01-30

Andrographolide derivatives and method of using the same for treatment or prevention of fibrosis

#53
20190357534
2019-11-28

Strigolactone analogs and their usage in plant control

#54
20190345125
2019-11-14

Continuous carbonylation processes

#55
20190330148
2019-10-31

Plant growth regulator compounds

#56
20190315702
2019-10-17

Integrated methods for chemical synthesis

#57
20190284152
2019-09-19

Maleinated Derivatives

#58
20190133976
2019-05-09

Metabolically robust analogs of CYP-eicosanoids for the treatment of cardiac disease

#59
20190125744
2019-05-02

Lanthionine synthetase C-like 2-based therapeutics

#60
20190119452
2019-04-25

Porous super absorbent polymer and preparation method thereof

#61
20180319731
2018-11-08

Acid/salt separation

#62
20180310557
2018-11-01

Methods for hydraulic enhancement of crops

#63
20180305735
2018-10-25

Method of inactivating microbes by citraconic anhydride

#64
20180305345
2018-10-25

COMPOSITIONS AND METHODS FOR ENHANCING ONCOLYTIC VIRUS EFFICACY

#65
20180290994
2018-10-11

OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION

#66
20180289703
2018-10-11

Lanthionine synthetase C-like 2-based therapeutics

#67
20180229201
2018-08-16

Double zone tubular reactor and method for carrying out maleic anhydride production by n-butane oxidation

#68
20180183097
2018-06-28

Electrolyte solution, electrochemical device, lithium ion secondary battery, and module

#69
20180179449
2018-06-28

Method and apparatus for producing a chemical compound and the produced chemical compound

#70
20180127361
2018-05-10

Sulfamoyl-arylamides and the use thereof as medicaments for the treatment of hepatitis B

#71
20180112190
2018-04-26

Compositions and methods for viral sensitization

#72
20180111912
2018-04-26

Maleinated derivatives

#73
20180030015
2018-02-01

Continuous carbonylation processes

#74
20180030014
2018-02-01

INTEGRATED METHODS FOR CHEMICAL SYNTHESIS

#75
20180029005
2018-02-01

FLEXIBLE CHEMICAL PRODUCTION PLATFORM

#76
20180022680
2018-01-25

Method for producing acrylic acid

#77
20170354639
2017-12-14

DITERPENOID DERIVATIVES AND METHODS OF USE THEREOF

#78
20170260154
2017-09-14

Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation

#79
20170145043
2017-05-25

Depolymerization of lignin using metal incorporated mesoporous silicate catalysts

#80
20170107103
2017-04-20

Integrated methods for chemical synthesis

#81
20170096407
2017-04-06

Catalyst recycle methods

#82
20170001940
2017-01-05

Methods for production of terephthalic acid from ethylene oxide

#83
20160370700
2016-12-22

Photoresist composition, compound, and production method thereof

#84
20160355492
2016-12-08

Methods of making sulfurized derivatives

#85
20160347690
2016-12-01

Hydrogen-assisted adsorption of sulphur compounds from olefin mixtures

#86
20160279587
2016-09-29

Packing for reaction tube, reaction tube, and reaction method using same

#87
20160272605
2016-09-22

Disubstituted maleic anhydrides with altered kinetics of ring closure

#88
20160130244
2016-05-12

Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation

#89
20160130216
2016-05-12

Compounds for promoting liposomal and cellular adhesion and compositions and methods of use thereof

#90
20160115182
2016-04-28

One step process for regioselective synthesis of α-acyloxy carbonyls

#91
20160115153
2016-04-28

Lanthionine synthetase C-like 2-based therapeutics

#92
20160115144
2016-04-28

Acid dianhydride, method for preparing same, and polyimide prepared therefrom

#93
20160108014
2016-04-21

Acid dianhydride, method for preparing same, and polyimide prepared therefrom

#94
20160102068
2016-04-14

SUCCINIC ANHYDRIDE FROM ETHYLENE OXIDE

#95
20160102040
2016-04-14

Process for beta-lactone production

#96
20160060552
2016-03-03

POLYALKYL SUCCINIC ANHYDRIDE DERIVATIVES AS ADDITIVES FOR FOULING MITIGATION IN PETROLEUM REFINERY PROCESSES

#97
20160060225
2016-03-03

Method of manufacturing pyridazinone compound

#98
20160052853
2016-02-25

Plate-type reactor with in-situ injection

#99
20160024540
2016-01-28

Process and Intermediates for the Preparation of Pregabalin

#100
20160009623
2016-01-14

Lipophilic curcumin analogs and methods of inhibiting HIV-1, treating latent HIV in the brain, and preventing HIV-mediated cognitive decline and HIV dementia

#101
20150329513
2015-11-19

Large molecule and polymer flame retardants

#102
20150291729
2015-10-15

Epoxy resin curing agent

#103
20150283538
2015-10-08

Alkali metal-modified vanadium-phosphorus oxide (VPO) catalyst

#104
20150266890
2015-09-24

Sulfamoyl-arylamides and the use thereof as medicaments for the treatment of hepatitis B

#105
20150250169
2015-09-10

ASCORBIC ACID-RELATED COMPOUND AND PLANT ANTIVIRAL AGENT

#106
20150247963
2015-09-03

Optical film, circularly polarizing plate, and image display device

#107
20150240056
2015-08-27

PROCESS OF CONTROLLED CHEMICAL REACTION OF A SOLID FILLER MATERIAL SURFACE AND ADDITIVES TO PRODUCE A SURFACE TREATED FILLER MATERIAL PRODUCT

#108
20150225360
2015-08-13

Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation

#109
20150150893
2015-06-04

ANDROGRAPHOLIDE ANALOGS AND THEIR USE FOR MEDICATION

#110
20150141255
2015-05-21

Strigolactone analogues and the use thereof for the treatment of plants

#111
20150105460
2015-04-16

LABDANE DITERPENOID COMPOUNDS, SEMEN BIOTAE EXTRACT, AND PREPARATION METHOD AND USE THEREOF

#112
20150005513
2015-01-01

Process for the production of acid anhydrides from epoxides

#113
20140364632
2014-12-11

Acid/salt separation

#114
20140364618
2014-12-11

Method of making indeno-fused naphthol materials

#115
20140343039
2014-11-20

PROCESS FOR PREPARING CEPHALOTAXINE ESTERS

#116
20140275575
2014-09-18

Process for beta-lactone production

#117
20140179753
2014-06-26

Compounds from and use thereof

#118
20140148604
2014-05-29

Process for preparing sodium salts or potassium salts of 4-hydroxy-2-oxo-2,5-dihydrofuran-3-carboxylate

#119
20140128584
2014-05-08

Disubstituted maleic anhydrides with altered kinetics of ring closure

#120
20140081036
2014-03-20

Solvent for recovery of maleic anhydride from a gas stream

#121
20140051742
2014-02-20

Lipophilic curcumin analogs and methods of inhibiting HIV-1, treating latent HIV in the brain, and preventing HIV-mediated cognitive decline and HIV dementia

#122
20140046077
2014-02-13

Process for the production of anhydrides

#123
20140024844
2014-01-23

Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation

#124
20130338378
2013-12-19

Shaped catalyst body for flow-through fixed-bed reactors

#125
20130274479
2013-10-17

Aminohydroxylation of alkenes

#126
20130225649
2013-08-29

Compounds from and use thereof

#127
20130217897
2013-08-22

VPO CATALYST WITH LOW VANADIUM OXIDATION STATE FOR MALEIC ANDHYDRIDE PRODUCTION (D#81,745)

#128
20130217896
2013-08-22

Gas phase oxidation catalyst with low charge transport activation energy

#129
20130172577
2013-07-04

Process for producing a ringlike oxidic shaped body

#130
20130165671
2013-06-27

Oxidation catalyst for maleic anhydride production

#131
20130165670
2013-06-27

Succinic anhydride from ethylene oxide

#132
20130150594
2013-06-13

Process for recovery of maleic anhydride by using organic solvent

#133
20130123517
2013-05-16

SILVER VANADIUM PHOSPHATES

#134
20130102455
2013-04-25

Catalyst for n-butane oxidation to maleic anhydride

#135
20130096323
2013-04-18

Mixture and compounds from mycelia of and use thereof

#136
20130085068
2013-04-04

Germination-stimulant carbamate derivatives and process for preparation thereof

#137
20120295876
2012-11-22

Pyridazine derivatives, processes for their preparation and their use as fungicides

#138
20120283156
2012-11-08

FUNCTIONALIZED MONOMERS

#139
20120277133
2012-11-01

FUNCTIONALIZED POLYMERS

#140
20120264664
2012-10-18

Malienated derivatives

#141
20120264662
2012-10-18

FUNCTIONALIZED MONOMERS

#142
20120245063
2012-09-27

Functionalized monomers and polymers

#143
20120178927
2012-07-12

Cycloalkylphenyl substituted cyclic ketoenols

#144
20120157696
2012-06-21

Method of making indeno-fused naphthol materials

#145
20120149753
2012-06-14

Use of novel compounds from fruiting body of for treating an inflammatory disorder

#146
20120149653
2012-06-14

MULTIFUNCTIONAL LINKERS AND METHODS FOR THE USE THEREOF

#147
20120123137
2012-05-17

Process for beta-lactone production

#148
20120088885
2012-04-12

Device for continuously carrying out chemical reactions at high temperatures

#149
20120028804
2012-02-02

3-biphenyl-substituted-3-substituted-4-ketolactam and ketolactone and their utilization as pesticide

#150
20120022250
2012-01-26

PROCESS FOR PREPARING CEPHALOTAXINE ESTERS

#151
20120015411
2012-01-19

Manufacture of maleic anhydride from renewable materials, maleic anhydride obtained, and uses thereof

#152
20110288052
2011-11-24

NOVEL COMPOUNDS, PHARMACEUTICAL COMPOSITIONS CONTAINING SAME, AND METHODS OF USE FOR SAME

#153
20110230346
2011-09-22

Biphenyl-substituted cyclic ketoenols

#154
20110201666
2011-08-18

COMPOUNDS FROM MYCELIUM OF ANTRODIA CINNAMOMEA AND USE THEREOF

#155
20110160466
2011-06-30

Method for preparing the citraconic anhydride and method for isomerizing/dehydrating itaconic acid

#156
20110092368
2011-04-21

2,4,6-Phenyl-substituted cyclic ketoenols

#157
20110077295
2011-03-31

Andrographolide derivatives and use thereof in manufacture of medicaments

#158
20110077282
2011-03-31

Use of novel compounds from fruiting body of for stimulating immune response

#159
20110060147
2011-03-10

Process for preparing 2,4-dioxotetrahydrofuran-3-carboxylates

#160
20110054192
2011-03-03

PAPER SIZING ADDITIVES, THEIR PREPARATION PROCESS, AND THEIR USE

#161
20100324309
2010-12-23

Novel Mixture and Compounds from Mycelia of Antrodia Camphorata and Use Thereof

#162
20100286227
2010-11-11

Compounds from mycelium of and use thereof

#163
20100210858
2010-08-19

Oxidation catalyst for maleic anhydride production

#164
20100184796
2010-07-22

Methods of identifying agonists and antagonists of hTASR bitter taste receptors

#165
20100173778
2010-07-08

3-biphenyl-substituted-3-substituted-4-ketolactam and ketolactone and their utilization as pesticide

#166
20100170829
2010-07-08

POLYALKYL SUCCINIC ANHYDRIDE DERIVATIVES AS ADDITIVES FOR FOULING MITIGATION IN PETROLEUM REFINERY PROCESSES

#167
20100144674
2010-06-10

PYRIDAZINE DERIVATIVES

#168
20100130584
2010-05-27

Compounds from

#169
20100087663
2010-04-08

POLYNARY METAL VANADIUM OXIDE PHOSPHATE

#170
20100087320
2010-04-08

Arylphenyl-substituted cyclic keto-enols

#171
20100010238
2010-01-14

Process for producing a ringlike oxidic shaped body

#172
20100009850
2010-01-14

Iodine-phenyl-substituted cyclic cetoenols

#173
20090306410
2009-12-10

Shaped catalyst body for partial oxidation reactions

#174
20090305891
2009-12-10

Cycloalkylphenyl substituted cyclic ketoenols

#175
20090281337
2009-11-12

Pyridazine compound and use thereof

#176
20090247626
2009-10-01

Method of treating dyslipidemia using naturally occurring diterpene

#177
20090169985
2009-07-02

ELECTROLYTIC SOLUTION, SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME, AND SULFONE COMPOUND

#178
20080281074
2008-11-13

Compounds and methods for reversible modification of biologically active molecules

#179
20080281073
2008-11-13

High-Purity Oxydiphthalic Acid Anhydride and Process for Producing the Same

#180
20080262082
2008-10-23

COMPOSITION CONTAINING S-(-)-TULIPALIN B OR ACETYLATED-S-(-)-TULIPALIN B

#181
20080194566
2008-08-14

Pyridazine Compound and Use Thereof

#182
20080188669
2008-08-07

Novel mixture and compounds from mycelia of Antrodia camphorata and use thereof

#183
20080132562
2008-06-05

TETRONIC AND TETRAMIC ACIDS

#184
20080125484
2008-05-29

Synthetic lactone formulations and methods of use

#185
20080081807
2008-04-03

Arylphenyl-substituted cyclic keto-enols

#186
20080067123
2008-03-20

Substrates With Modified Carbon Surfaces

#187
20080032982
2008-02-07

Butanoic acid derivatives, processes for the preparation thereof, pharmaceutical compositions comprising them, and therapeutic applications thereof

#188
20070088027
2007-04-19

Carboxylic acid derivatives and pharmaceutical compositions comprising the same as an active ingredient

#189
20070015664
2007-01-18

2,4,6-phenyl substituted cyclic ketoenols

#190
20060122061
2006-06-08

Arylphenyl-substituted cyclic ketoenols

#191
20060099222
2006-05-11

Novel mixture and compounds from mycelia of antrodia camphorata and use thereof

#192
20050256319
2005-11-17

Method for producing maleic anhydride

#193
20050215772
2005-09-29

Furanone derivatives and methods of making same

#194
20050197384
2005-09-08

Compounds from having anti-inflammatory and anti-tumor activity

#195
20050187110
2005-08-25

Herbicides

#196
20050164883
2005-07-28

Herbicides

#197
20050131239
2005-06-16

Preparation of aryl-substituted butenolides using mucohalic acids

#198
20050119329
2005-06-02

Tetronic and tetramic acids

#199
20050101663
2005-05-12

Synthetic lactone formulations and method of use

#200
20050090400
2005-04-28

3-biphenyl-substituted-3-substituted-4-ketolactam and ketolactone and their utilization as pesticide

#201
20050059831
2005-03-17

Preparation of substituted butenolides via palladium-free etherification and amination of masked mucohalic acids

#202
20050038021
2005-02-17

2,4,5,-trisubstituted phenylketo-enols for use as pesticides and herbicides

#203
15652681
2017-10-31

Method for forming furanone from biomass

#204
15370015
2017-09-05

Method of producing a furanone compound

#205
14552825
2016-06-28

Succinic anhydrides from epoxides

#206
13914592
2014-12-30

Succinic anhydrides from epoxides