Patents-Review.com
ClassID:

99519 ⎘

C08G65/33337 - CPC Classification

Classification description:

Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring; Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing imide group cyclic

Recent Application in this class:
#1
20260062715
2026-03-05

CATIONIC POLOXAMERS AND THEIR USE IN TRANSDUCTION

 #2
20250250397
2025-08-07

ANISOTROPIC POLY(ETHYLENE GLYCOL)-BASED HYDROGELS SYNTHESIZED VIA TWO-STAGE POLYMERIZATION AND MECHANICAL ALIGNMENT

 #3
20250197564
2025-06-19

METHOD FOR PRODUCING POLYOXYETHYLENE DERIVATIVE, METHOD FOR QUANTITATING POLYOXYETHYLENE COMPOUND, AND LABELING REAGENT FOR ANALYSIS USE

 #4
20250019566
2025-01-16

COATINGS CONTAINING POLYMER MODIFIED ENZYME FOR STABLE SELF-CLEANING OF ORGANIC STAINS

 #5
20240228705
2024-07-11

RESIN COMPOSITION

 #6
20240043613
2024-02-08

METHOD FOR PRODUCING MALEIMIDE POLYETHYLENE GLYCOL DERIVATIVE

 #7
20230340296
2023-10-26

COATINGS CONTAINING ENZYME FOR STABLE SELF-CLEANING OF ORGANIC STAINS

 #8
20230212426
2023-07-06

Coatings Containing Polymer Modified Enzyme For Stable Self-Cleaning Of Organic Stains

 #9
20230113413
2023-04-13

POLYMER DERIVATIVES HAVING PARTICULAR ATOM ARRANGEMENTS

 #10
20230002554
2023-01-05

Polyethylene glycol derivative, preparation method thereof, and polyethylene glycol hydrogel capable of producing a rapid crosslinking reaction

 #11
20220373541
2022-11-24

Tri-functional crosslinking reagents

 #12
20220267803
2022-08-25

CATIONIC POLOXAMERS AND THEIR USE IN TRANSDUCTION

 #13
20210363300
2021-11-25

Starting material, for bulk drug or additives for drug, and bulk drug or drug using same

 #14
20210347941
2021-11-11

METHOD FOR PREPARING FUNCTIONALIZED POLYMERS FROM POLYMER ALCOHOLS

 #15
20210155799
2021-05-27

Polymer gel having sponge-like porous structure

 #16
20210128777
2021-05-06

ADDITIVE ABLE TO PROVIDE UNDERWATER ADHESION

 #17
20200308443
2020-10-01

Coatings containing polymer modified enzyme for stable self-cleaning of organic stains

 #18
20200291178
2020-09-17

Hydrophilic polymer derivative having cyclic benzylidene acetal linker

 #19
20200289656
2020-09-17

Biodegradable polyethylene glycol derivative having cyclic benzylidene acetal linker

 #20
20200246471
2020-08-06

Polymer derivatives having particular atom arrangements

 #21
20200109311
2020-04-09

Coatings containing enzyme for stable self-cleaning of organic stains

 #22
20200087453
2020-03-19

LOW SWELLING SYNTHETIC SEALANT

 #23
20190381031
2019-12-19

Epimorphic regeneration and related hydrogel delivery systems

 #24
20190330422
2019-10-31

N-maleimidyl polymer derivatives

 #25
20190201528
2019-07-04

Derivatized hyperbranched polyglycerols

 #26
20190144711
2019-05-16

Coatings containing polymer modified enzyme for stable self-cleaning of organic stains

 #27
20190144710
2019-05-16

Coatings containing polymer modified enzyme for stable self-cleaning of organic stains

 #28
20190144709
2019-05-16

Coatings containing polymer modified enzyme for stable self-cleaning of organic stains

 #29
20190055354
2019-02-21

Methods for preparing functionalized polymers from polymer alcohols

 #30
20190022236
2019-01-24

Polymer derivatives having particular atom arrangements

 #31
20190008822
2019-01-10

Multi-arm polymeric prodrug conjugates of taxane-based compounds

 #32
20180328922
2018-11-15

Tri-functional crosslinking reagents

 #33
20180312466
2018-11-01

Branched hetero polyethylene glycol and intermediate

 #34
20180256777
2018-09-13

Additive able to provide underwater adhesion

 #35
20180078651
2018-03-22

BIODEGRADABLE POLYETHYLENE GLYCOL DERIVATIVE HAVING CYCLIC BENZYLIDENE ACETAL LINKER

 #36
20180051135
2018-02-22

N-maleimidyl polymer derivatives

 #37
20180030205
2018-02-01

Process for producing low-concentration gel using gel-precursor clusters, and gel obtained by said production process

 #38
20170319696
2017-11-09

Derivatized hyperbranched polyglycerols

 #39
20170273971
2017-09-28

Epimorphic regeneration and related hydrogel delivery systems

 #40
20170224850
2017-08-10

Compound or salt thereof and contrast agent for optical imaging

 #41
20170073468
2017-03-16

Method for preparing functionalized polymers from polymer alcohols

 #42
20160326318
2016-11-10

Polyamides modified with (per)fluoropolyether segments

 #43
20160326317
2016-11-10

Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same

 #44
20160324974
2016-11-10

Method for preparing a polymeric reagent

 #45
20160272762
2016-09-22

Stearic acid derivatives and oleic acid derivatives of multi-arm polyethylene glycol

 #46
20160271267
2016-09-22

Alkynyl multi-arm polyethylene glycol derivative

 #47
20160271266
2016-09-22

Multi-arm polyethylene glycol-azido derivative

 #48
20160235705
2016-08-18

Multi-arm polymeric prodrug conjugates of taxane-based compounds

 #49
20160177030
2016-06-23

Photodegradable cross-linking agent, photodegradable gel, cell culture instrument, cell arrangement-sorting apparatus, cell arrangement method, cell sorting method, tissue forming method, and tissue

 #50
20160114040
2016-04-28

Derivatized hyperbranched polyglycerols

 #51
20160083514
2016-03-24

N-maleimidyl polymer derivatives

 #52
20160024349
2016-01-28

Coatings containing polymer modified enzyme for stable self-cleaning of organic stains

 #53
20150328331
2015-11-19

Compositions comprising a polymeric reagent and a pharmacologically active agent

 #54
20150258205
2015-09-17

Hydrogel prodrugs

 #55
20150202305
2015-07-23

Method of creating hydrogels through oxime bond formation

 #56
20150166725
2015-06-18

N-maleimidyl polymer derivatives

 #57
20150073155
2015-03-12

Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same

 #58
20140256957
2014-09-11

N-maleimidyl polymer derivatives

 #59
20140227218
2014-08-14

Pharmaceutical compositions of conjugates formed from polymer derivatives having particular atom arrangements

 #60
20140128619
2014-05-08

Intermediates useful in the preparation of maleimide functionalized polymers

 #61
20140039167
2014-02-06

Polymer derivatives comprising an acetal or ketal branching point

 #62
20140013998
2014-01-16

Enzymatically degradable compositions

 #63
20130225789
2013-08-29

Polyethylene Glycol Having Hetero Multiple Functional Groups

 #64
20130178600
2013-07-11

POLY(ETHYLENE GLYCOL) DERIVATIVES FOR CLICK CHEMISTRY

 #65
20130122112
2013-05-16

Derivatized hyperbranched polyglycerols

 #66
20130065291
2013-03-14

Coatings containing polymer modified enzyme for stable self-cleaning of organic stains

 #67
20120322955
2012-12-20

Polyoxyethylene derivative having plural hydroxyl groups at terminal end thereof

 #68
20120302761
2012-11-29

Intermediates useful in the preparation of maleimide functionalized polymers

 #69
20120282671
2012-11-08

Multi-arm polyethylene glycol derivatives, conjugates and gels of pharmaceuticals and the same

 #70
20120226050
2012-09-06

Poly(ethylene glycol) containing chemically disparate endgroups

 #71
20120226022
2012-09-06

Hydrolytically stable maleimide-terminated polymers

 #72
20120123065
2012-05-17

Hydrolytically stable maleimide-terminated polymers

 #73
20120122949
2012-05-17

ULTRA-HIGH STRENGTH INJECTABLE HYDROGEL AND PROCESS FOR PRODUCING THE SAME

 #74
20120077988
2012-03-29

Branched hetero polyethylene glycol and intermediate

 #75
20120034433
2012-02-09

Block copolymer blends

 #76
20120004422
2012-01-05

Intermediates useful in the preparation of maleimide functionalized polymers

 #77
20110286956
2011-11-24

Multi-arm polyethylene glycol, preparation method and uses thereof

 #78
20110282093
2011-11-17

HETEROBIFUNCTIONAL POLYETHYLENE GLYCOL REAGENTS

 #79
20110281921
2011-11-17

Anti-biofilm agents

 #80
20110262379
2011-10-27

Maleamic acid polymer derivatives and their bioconjugates

 #81
20110245509
2011-10-06

Polyfunctional polyoxyalkylene compound, and producing method and intermediate thereof

 #82
20110217343
2011-09-08

Hydrolytically degradable alkylene oxide based polymers

 #83
20110213085
2011-09-01

Fluorinated thermoplastic polymer additive

 #84
20110178242
2011-07-21

Methods for forming polymer-drug conjugates

 #85
20110159075
2011-06-30

COMPOSITIONS AND SYSTEMS FOR FORMING CROSSLINKED BIOMATERIALS AND METHODS OF PREPARATION AND USE

 #86
20110118480
2011-05-19

Method of synthesizing a substantially monodispersed mixture of oligomers

 #87
20110111477
2011-05-12

Long acting formulation of biopharmaceutical

 #88
20110071262
2011-03-24

Method for preparing high-purity polyethyleneglycol aldehyde derivatives

 #89
20110044932
2011-02-24

Crosslinked polyalkyleneimine hydrogels with tunable degradation rates

 #90
20100311986
2010-12-09

PREPARING METHOD OF METHOXYPOLYETHYLENEGLYCOL ETHYLMALEIMIDE

 #91
20100280252
2010-11-04

Poly(ethylene glycol) containing chemically disparate endgroups

 #92
20100261863
2010-10-14

Multibranched polyoxyalkylene compound and producing method thereof

 #93
20100261841
2010-10-14

Intermediates useful in the preparation of maleimide functionalized polymers

 #94
20100261245
2010-10-14

LONG ACTING FORMULATION OF BIOPHARMACEUTICAL

 #95
20100184989
2010-07-22

De Novo Synthesis of Conjugates

 #96
20100184937
2010-07-22

Polymer derivatives with proximal reactive groups

 #97
20100160645
2010-06-24

Poly(ethylene glycol) containing chemically disparate endgroups

 #98
20100137548
2010-06-03

Process for transforming the end groups of polymers

 #99
20100113329
2010-05-06

Maleamic acid polymer derivatives and their bioconjugates

 #100
20100069927
2010-03-18

Polymeric Masking Materials for Spanning Wound Sites, and Methods of Use Thereof

 #101
20100029899
2010-02-04

Multibranched polyoxyalkylene derivative

 #102
20090324721
2009-12-31

Hydrogels Suitable For Use In Polyp Removal

 #103
20090324720
2009-12-31

Biocompatible crosslinked hydrogels, drug-loaded hydrogels and methods of using the same

 #104
20090215923
2009-08-27

Crosslinked polyalkyleneimine hydrogels with tunable degradation rates

 #105
20090186984
2009-07-23

Poly(ethylene glycol) derivatives with proximal reactive groups

 #106
20090149942
2009-06-11

Endoprosthesis having a non-fouling surface

 #107
20090131632
2009-05-21

Method of synthesis of morpholino oligomers

 #108
20090117077
2009-05-07

POLYETHYLENE GLYCOL-INTERFERON ALPHA CONJUGATE

 #109
20090016985
2009-01-15

POLYMERIC DRUG DELIVERY SYSTEM CONTAINING A MULTI-SUBSTITUTED AROMATIC MOIETY

 #110
20090012241
2009-01-08

Hydrolytically stable maleimide-terminated polymers

 #111
20080299069
2008-12-04

Polymer derivatives comprising an acetal or ketal branching point

 #112
20080287633
2008-11-20

Hydrogel Materials

 #113
20080274980
2008-11-06

Macromonomers and hydrogel systems using native chemical ligation, and their methods of preparation

 #114
20080207913
2008-08-28

Poly(ethylene glycol) containing chemically disparate endgroups

 #115
20080188414
2008-08-07

Factor IX moiety-polymer conjugates having a releasable linkage

 #116
20080146771
2008-06-19

Maleamic acid polymer derivatives and their bioconjugates

 #117
20080039548
2008-02-14

Moisture activated latent curing adhesive or sealant

 #118
20070203264
2007-08-30

Poly (ethylene glycol) derivatives with proximal reactive groups

 #119
20060275252
2006-12-07

Conjugates formed from polymer derivatives having particular atom arrangements

 #120
20060239961
2006-10-26

Hydrolytically degradable alkylene oxide based polymers

 #121
20060210602
2006-09-21

Compositions and systems for forming crosslinked biomaterials and methods of preparation of use

 #122
20060155059
2006-07-13

Polyethylene (glycol) derivatives with proximal reactive groups

 #123
20060142506
2006-06-29

Heterobifunctional poly(ethylene glycol) and uses thereof

 #124
20060013797
2006-01-19

N-maleimidyl polymer derivatives

 #125
20060009590
2006-01-12

Hydrolytically stable maleimide-terminated polymers

 #126
20050176922
2005-08-11

Method of preparing maleimide functionalized polymers

 #127
20050054816
2005-03-10

Method for preparing functionalized polymers from polymer alcohols

 #128
20050053576
2005-03-10

Glycosaminoglycan-polycation complex crosslinked with polyfunctional crosslinking agent and process for producing the same

 #129
20050009988
2005-01-13

Polymer derivatives having particular atom arrangements