Patents-Review.com
ClassID:

151766 ⎘

F16J9/26 - CPC Classification

Classification description:

Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction characterised by the use of particular materials

Recent Application in this class:
#1
20260049659
2026-02-19

PISTON RING AND METHOD FOR MANUFACTURING A PISTON RING

 #2
20260043474
2026-02-12

METHODS FOR SURFACE MODIFICATION OF MID-TURBINE FRAME PISTON SEAL RINGS AND INTERFACING COMPONENTS TO ACHIEVE LOW FRICTION AND HIGH WEAR RESISTANCE

 #3
20260002588
2026-01-01

Piston Ring

 #4
20250383047
2025-12-18

PRESSURE BOOSTING PUMP AND HYDROGEN SUPPLY SYSTEM

 #5
20250341253
2025-11-06

PISTON RING

 #6
20250314177
2025-10-09

CERAMIC MATRIX COMPOSITE PARTS AND METHODS FOR THEIR PRODUCTION

 #7
20250243935
2025-07-31

PNEUMATIC PISTON AND METHOD FOR PRODUCING SAME

 #8
20250224034
2025-07-10

LIGHT WEIGHT HYBRID PISTON SEAL RING

 #9
20250215974
2025-07-03

PISTON RING WITH HARD PLATING, AND PREPARATION METHOD THEREFOR

 #10
20250180117
2025-06-05

SLIDING MECHANISM

 #11
20250129847
2025-04-24

PISTON RING

 #12
20250102062
2025-03-27

PISTON RING AND INTERNAL COMBUSTION ENGINE

 #13
20250075794
2025-03-06

PISTON RINGS AND BARREL SLEEVES

 #14
20250067340
2025-02-27

PISTON SEALING RING ASSEMBLY HAVING A GAP COVER ELEMENT

 #15
20250060035
2025-02-20

PISTON SEALING RING ASSEMBLIES

 #16
20250019854
2025-01-16

COMPOSITE HARD CHROME PLATING

 #17
20250012358
2025-01-09

PISTON RING AND METHOD OF MANUFACTURE

 #18
20240410424
2024-12-12

FUNCTIONALLY GRADED COMPOSITE STRUCTURES

 #19
20240384791
2024-11-21

PISTON RING HAVING A WEAR PROTECTION LAYER CONTAINING PARTICLES, METHOD FOR PRODUCTION AND USE

 #20
20240377108
2024-11-14

GIFFORD-MCMAHON (GM) CRYOCOOLER FIRST-STAGE DISPLACER, FIRST-STAGE DISPLACER ASSEMBLY, AND GIFFORD-MCMAHON CRYOCOOLER

 #21
20240376983
2024-11-14

COATING FOR A PISTON RING

 #22
20240263699
2024-08-08

Piston ring

 #23
20240240714
2024-07-18

PISTON RING

 #24
20240159313
2024-05-16

SLIDING MEMBER, MANUFACTURING METHOD THEREOF, AND COATING FILM

 #25
20240125386
2024-04-18

PISTON RING

 #26
20240117880
2024-04-11

METHODS FOR SURFACE MODIFICATION OF MID-TURBINE FRAME PISTON SEAL RINGS AND INTERFACING COMPONENTS TO ACHIEVE LOW FRICTION AND HIGH WEAR RESISTANCE

 #27
20240110287
2024-04-04

SLIDING MEMBER

 #28
20240093325
2024-03-21

OIL RING WIRE

 #29
20240035570
2024-02-01

PISTON RINGS AND METHODS OF MANUFACTURE

 #30
20240026972
2024-01-25

OIL RING WIRE

 #31
20240026971
2024-01-25

Piston ring

 #32
20230416903
2023-12-28

CRN coating film and sliding member

 #33
20230392688
2023-12-07

Sliding member

 #34
20230392687
2023-12-07

Sliding member

 #35
20230375086
2023-11-23

Piston sealing ring assembly having a gap cover element

 #36
20230332686
2023-10-19

Sliding element, in particular piston ring

 #37
20230147997
2023-05-11

PISTON RING WITH HARD CHROMIUM LAYER AND IMPROVED RUNNING-IN BEHAVIOUR

 #38
20230137241
2023-05-04

Internal combustion engine

 #39
20230134881
2023-05-04

SLIDING ELEMENT, IN PARTICULAR PISTON RING, AND METHOD FOR PRODUCING SAME

 #40
20230129966
2023-04-27

GAS ENERGIZED SEAL FOR GIFFORD-MCMAHON EXPANDER

 #41
20230127883
2023-04-27

Piston ring and method for manufacturing same

 #42
20230087184
2023-03-23

Compressor

 #43
20230083774
2023-03-16

Piston ring, and method for manufacturing same

 #44
20230013831
2023-01-19

Compression ring

 #45
20230008886
2023-01-12

COATED PISTON RING FOR AN INTERNAL COMBUSTION ENGINE

 #46
20230003300
2023-01-05

Combination of cylinder and piston ring

 #47
20220396746
2022-12-15

Sliding member, manufacturing method thereof, and coating film

 #48
20220364643
2022-11-17

COATED PISTON RING FOR AN INTERNAL COMBUSTION ENGINE

 #49
20220356948
2022-11-10

Piston sealing ring assemblies

 #50
20220333687
2022-10-20

PISTON RING AND METHOD FOR MANUFACTURING A PISTON RING

 #51
20220325797
2022-10-13

Low friction, wear resistant piston seal

 #52
20220325710
2022-10-13

Piston for reciprocating compressor having complementary sealing elements

 #53
20220196151
2022-06-23

PISTON RING UNIT AND COMPRESSOR

 #54
20220186833
2022-06-16

Scraper ring for a piston

 #55
20220145989
2022-05-12

Piston ring for engine and machining method of piston ring

 #56
20220145442
2022-05-12

WEAR AND/OR FRICTION REDUCTION BY USING MOLYBDENUM NITRIDE BASED COATINGS

 #57
20220090680
2022-03-24

Piston ring and method of manufacture

 #58
20220074450
2022-03-10

Functionally graded composite structures

 #59
20220003316
2022-01-06

Piston ring

 #60
20210396313
2021-12-23

PISTON COMPRESSION RINGS OF COPPER ALLOYS

 #61
20210388901
2021-12-16

Piston sealing ring assembly having a gap cover element

 #62
20210355926
2021-11-18

GAS COMPRESSOR AND PRODUCTION METHOD FOR GAS COMPRESSOR

 #63
20210277996
2021-09-09

Sliding element for an internal combustion engine

 #64
20210270370
2021-09-02

Piston ring

 #65
20210270369
2021-09-02

Self-lubricating, wear resistant piston seal

 #66
20210254220
2021-08-19

Part coated with a hydrogenated amorphous carbon coating on an undercoat comprising chromium, carbon and silicon

 #67
20210140542
2021-05-13

Piston seal with solid lubricant applicator

 #68
20210071761
2021-03-11

Piston ring

 #69
20210071760
2021-03-11

Coated piston ring for an internal combustion engine

 #70
20200370162
2020-11-26

Friction reduced and wear resistant coating, preparation method thereof and piston ring

 #71
20200340582
2020-10-29

Piston ring, reciprocating compressor, method for selecting piston ring and method for evaluating life of piston ring

 #72
20200318737
2020-10-08

Low friction, wear resistant piston seal

 #73
20200309263
2020-10-01

Piston ring

 #74
20200299812
2020-09-24

Sliding member

 #75
20200292076
2020-09-17

Sliding member and piston ring

 #76
20200284346
2020-09-10

Sliding member and piston ring

 #77
20200284345
2020-09-10

Sliding member and piston ring

 #78
20200284344
2020-09-10

PISTON RING WITH INLAID DLC COATING AND METHOD OF MANUFACTURING

 #79
20200256466
2020-08-13

Piston ring with inlaid DLC coating and method of manufacturing

 #80
20200224317
2020-07-16

Piston ring with shot-peened running-in layer and method for the production thereof

 #81
20200217416
2020-07-09

Sliding member and coating film

 #82
20200141492
2020-05-07

Method for producing a piston ring

 #83
20200141491
2020-05-07

OIL SCRAPER PISTON RING

 #84
20200141446
2020-05-07

Sliding member with carbon transfer layer

 #85
20200096106
2020-03-26

Piston ring for a piston compressor, and piston compressor

 #86
20200096103
2020-03-26

Flutter-suppression piston ring

 #87
20200088297
2020-03-19

Piston ring with wear resistant coating

 #88
20200080638
2020-03-12

Method for producing piston ring with recess

 #89
20200070240
2020-03-05

LIGHT WEIGHT INSERTS FOR PISTON RINGS, METHODS OF MANUFACTURING THEREOF AND ARTICLES COMPRISING THE SAME

 #90
20200056700
2020-02-20

Sliding member and piston ring

 #91
20200049252
2020-02-13

ONE PIECE OIL CONTROL RING FOR INTERNAL COMBUSTION ENGINE

 #92
20200040996
2020-02-06

Piston ring for internal combustion engines

 #93
20200038948
2020-02-06

PISTON WITH COFUSED ALFIN RING AND PROCESS TO OBTAIN IT

 #94
20200032019
2020-01-30

ELASTOMER COMPONENT EXPOSED TO BLOW-BY GASES OF AN INTERNAL COMBUSTION ENGINE

 #95
20200017956
2020-01-16

Coating device and method for manufacturing coated article

 #96
20200011211
2020-01-09

Sliding member, and sliding member for internal combustion engine

 #97
20190390770
2019-12-26

Piston sealing ring assemblies

 #98
20190376467
2019-12-12

Piston ring

 #99
20190368607
2019-12-05

PISTON RING AND METHOD FOR MANUFACTURING A PISTON RING

 #100
20190360585
2019-11-28

Combination oil ring

 #101
20190346043
2019-11-14

Piston ring having a stepped running surface

 #102
20190264809
2019-08-29

Piston ring and method for manufacturing a piston ring

 #103
20190194795
2019-06-27

SLIDING ELEMENT WITH MAX PHASE COATING

 #104
20190154153
2019-05-23

Sliding element for internal combustion engines

 #105
20190128420
2019-05-02

Sliding element, in particular piston ring

 #106
20190120379
2019-04-25

Piston ring for an internal-combustion engine, a method for coating a piston ring, and an internal-combustion engine

 #107
20190100836
2019-04-04

COATED PISTON RING HAVING A PROTECTIVE LAYER

 #108
20190093769
2019-03-28

Piston ring and method of manufacture

 #109
20190093768
2019-03-28

Piston ring and method of manufacture

 #110
20190049011
2019-02-14

Piston seal with solid lubricant applicator

 #111
20190049010
2019-02-14

Piston ring

 #112
20190049009
2019-02-14

Piston sealing ring assemblies

 #113
20190049006
2019-02-14

Piston sealing ring assembly having a gap cover element

 #114
20190024795
2019-01-24

Tribological system of an internal combustion engine with a coating

 #115
20190011047
2019-01-10

Piston ring having a groove seal

 #116
20190003590
2019-01-03

Braking device

 #117
20180371608
2018-12-27

Coating film, manufacturing method therefor, and PVD apparatus

 #118
20180361476
2018-12-20

DESIGNING AND MANUFACTURING METHOD FOR POWDER INJECTION MOLDING PISTON RING

 #119
20180347696
2018-12-06

Piston ring and method of manufacture

 #120
20180347695
2018-12-06

Piston ring

 #121
20180340612
2018-11-29

Coated steel piston ring

 #122
20180313447
2018-11-01

Piston rings in cast tool steels and process for the manufacture thereof

 #123
20180283553
2018-10-04

Piston ring and method for manufacturing a piston ring

 #124
20180274675
2018-09-27

PISTON RING WITH VARYING APEX LINES

 #125
20180259069
2018-09-13

PISTON RING

 #126
20180245200
2018-08-30

Sliding member and piston ring

 #127
20180238450
2018-08-23

Piston ring and method for manufacturing same

 #128
20180231125
2018-08-16

Piston ring and engine

 #129
20180216734
2018-08-02

Compression piston ring

 #130
20180209541
2018-07-26

Piston ring and its production method

 #131
20180209540
2018-07-26

PISTON RING

 #132
20180195613
2018-07-12

PISTON COMPRESSION RINGS OF COPPER-BERYLLIUM ALLOYS

 #133
20180195612
2018-07-12

Piston compression rings of copper-nickel-tin alloys

 #134
20180195611
2018-07-12

PISTON COMPRESSION RINGS OF COPPER ALLOYS

 #135
20180187781
2018-07-05

Sliding member and piston ring

 #136
20180187780
2018-07-05

Piston ring for combustion engine

 #137
20180180182
2018-06-28

Piston ring

 #138
20180180181
2018-06-28

Piston ring and manufacturing method therefor

 #139
20180148808
2018-05-31

ALLOY CAST IRON HAVING IMPROVED WEAR RESISTANCE, AND PISTON RING COMPRISING SAME

 #140
20180147630
2018-05-31

COMPOSITE FOR WEAR-RESISTANT RING HAVING EXCELLENT HEAT CONDUCTIVITY

 #141
20180135164
2018-05-17

Wear and/or friction reduction by using molybdenum nitride based coatings

 #142
20180119634
2018-05-03

Magnetic pulse welding of engine components

 #143
20180080556
2018-03-22

Piston ring

 #144
20180058582
2018-03-01

Graphite cast iron nitrided piston ring

 #145
20180031127
2018-02-01

Side rail

 #146
20180023703
2018-01-25

PISTON RING AND MANUFACTURING METHOD

 #147
20180017160
2018-01-18

SEALING DEVICE

 #148
20180017159
2018-01-18

Piston ring

 #149
20180010689
2018-01-11

Polymer coating in cracked piston ring coating

 #150
20180003252
2018-01-04

Piston for vehicle disc brake and manufacturing method thereof

 #151
20170362965
2017-12-21

BORON DOPED TA-C COATING FOR ENGINE COMPONENTS

 #152
20170356547
2017-12-14

Piston ring assembly

 #153
20170350508
2017-12-07

Combined oil control ring

 #154
20170335965
2017-11-23

Method for producing piston ring with recess

 #155
20170335964
2017-11-23

Sliding member and method for producing same

 #156
20170327957
2017-11-16

Piston ring and internal combustion engine

 #157
20170327918
2017-11-16

PROCESS FOR OBTAINING A PISTON RING AND INTERNAL COMBUSTION ENGINE

 #158
20170306469
2017-10-26

Internal-combustion engine piston ring, process for obtaining a piston ring, and internal-combustion engine

 #159
20170299056
2017-10-19

Oil Ring for a Piston Assembly

 #160
20170261103
2017-09-14

Diamond-like coating for piston ring surfaces, piston ring and processes for preparing the same

 #161
20170254418
2017-09-07

Piston ring

 #162
20170253825
2017-09-07

Coated sliding member

 #163
20170175893
2017-06-22

Combination oil ring

 #164
20170175622
2017-06-22

Sliding element

 #165
20170167609
2017-06-15

Piston ring

 #166
20170167608
2017-06-15

Piston ring and process for producing same

 #167
20170159816
2017-06-08

Sliding element, in particular piston ring, and method for producing the same

 #168
20170138476
2017-05-18

PISTON RING FOR INTERNAL COMBUSTION ENGINE

 #169
20170130841
2017-05-11

Coated sliding element

 #170
20170122249
2017-05-04

Coating for metal components, method for coating a metal component, piston for internal combustion engines and motor vehicle

 #171
20170108122
2017-04-20

Inlaid ring with plated lateral side

 #172
20170102071
2017-04-13

Sliding element

 #173
20170074400
2017-03-16

Ti—Si—C—N piston ring coatings

 #174
20170073605
2017-03-16

Coating composition for lubricating coating film

 #175
20170051783
2017-02-23

Sliding element

 #176
20170016538
2017-01-19

Piston ring and process for the manufacture thereof

 #177
20170009314
2017-01-12

Piston ring and its production method

 #178
20170002454
2017-01-05

Piston ring and manufacturing method therefor

 #179
20160369391
2016-12-22

Ti—Si—C—N piston ring coatings

 #180
20160363222
2016-12-15

Nitride coated piston ring

 #181
20160341312
2016-11-24

Sliding element, in particular piston ring

 #182
20160312891
2016-10-27

Coated sliding element

 #183
20160305547
2016-10-20

Piston ring for internal combustion engines

 #184
20160305366
2016-10-20

Sliding combination for use in an internal combustion engine

 #185
20160298764
2016-10-13

Piston ring

 #186
20160281849
2016-09-29

Piston ring for internal combustion engine

 #187
20160281202
2016-09-29

Piston ring

 #188
20160265660
2016-09-15

Piston ring for internal combustion engine

 #189
20160245407
2016-08-25

Piston ring

 #190
20160238133
2016-08-18

Piston ring and its production method

 #191
20160238132
2016-08-18

Piston ring

 #192
20160230697
2016-08-11

COMBINATION OF CYLINDER BORE AND PISTON RING

 #193
20160215882
2016-07-28

PRESSURE RING

 #194
20160186860
2016-06-30

Highly heat conductive piston ring for internal combustion engine

 #195
20160178054
2016-06-23

PISTON RING AND METHOD OF PRODUCING THE SAME

 #196
20160169387
2016-06-16

Piston ring and method for manufacturing same

 #197
20160153559
2016-06-02

Polyurethane elastomeric seal for hydraulic pumps

 #198
20160153392
2016-06-02

Sliding assembly

 #199
20160146347
2016-05-26

Seal set and sealing arrangement comprising at least one seal set

 #200
20160131132
2016-05-12

Piston Seal and Pump Including Same

 #201
20160122862
2016-05-05

Method for producing piston a ring

 #202
20160091091
2016-03-31

Assembly for sealing a sliding interface

 #203
20160084380
2016-03-24

Piston ring

 #204
20160084379
2016-03-24

Running set, piston bushing and engine block

 #205
20160069455
2016-03-10

Radially notched piston rings

 #206
20160017997
2016-01-21

SELF-CENTERING SERVO PISTON

 #207
20160003356
2016-01-07

Hard carbon coating film

 #208
20150368437
2015-12-24

Fluoropolymer compositions with microspheres

 #209
20150362072
2015-12-17

Sliding member and method for producing same

 #210
20150362071
2015-12-17

Sliding element, in particular a piston ring, having a coating

 #211
20150354702
2015-12-10

Piston ring for internal combustion engines with increased fatigue strength, and method for producing same

 #212
20150345003
2015-12-03

METAL MEMBER OF A MOVING SYSTEM OF AN INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTURING THE METAL MEMBER

 #213
20150330508
2015-11-19

Method for coating a sliding element using a nanoparticles infused coating

 #214
20150330507
2015-11-19

Piston ring sprayed coating, piston ring, and method for producing piston ring sprayed coating

 #215
20150308573
2015-10-29

Piston ring

 #216
20150300493
2015-10-22

Combination of cylinder and piston ring

 #217
20150292622
2015-10-15

Sliding element, in particular a piston ring, having a coating

 #218
20150292621
2015-10-15

Single-piece oil control ring

 #219
20150285378
2015-10-08

High modulus wear resistant gray cast iron for piston ring applications

 #220
20150266984
2015-09-24

Surface modification method, surface-modified elastic body, gasket for injector, injector, and tire

 #221
20150252901
2015-09-10

Wear-protection layer for piston rings

 #222
20150252900
2015-09-10

Piston ring

 #223
20150247225
2015-09-03

WIRE FOR PISTON RINGS

 #224
20150240945
2015-08-27

Three-piece oil ring for internal combustion engines, expanding element, and annular element

 #225
20150240944
2015-08-27

Sliding element, in particular piston ring, having resistant coating

 #226
20150240347
2015-08-27

Component having a coating and method for the production thereof

 #227
20150226327
2015-08-13

Piston ring

 #228
20150225836
2015-08-13

Piston ring

 #229
20150211635
2015-07-30

Multilayer multi-element composite hard pvd coating on the surface of a piston ring, a piston ring and a preparation process

 #230
20150184747
2015-07-02

Combined oil control ring

 #231
20150176710
2015-06-25

PISTON RING

 #232
20150167845
2015-06-18

Sliding element and internal combustion engine

 #233
20150137457
2015-05-21

Piston ring

 #234
20150136062
2015-05-21

Combination of cylinder and piston ring

 #235
20150130143
2015-05-14

Method for producing an oil scraper piston ring

 #236
20150122211
2015-05-07

SLIDING BODY WITH COATING

 #237
20150093586
2015-04-02

High-toughness coating film and sliding member

 #238
20150076769
2015-03-19

Piston ring

 #239
20150061231
2015-03-05

Piston ring for internal combustion engine

 #240
20150054223
2015-02-26

Coatings and powders, methods of making same, and uses thereof

 #241
20150054222
2015-02-26

Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface

 #242
20150041268
2015-02-12

Aircraft shock strut and rebound damping ring

 #243
20150018254
2015-01-15

Sliding element for use in internal combustion engine

 #244
20150010341
2015-01-08

Lockable joint

 #245
20140378900
2014-12-25

Osmotic delivery systems and piston assemblies for use therein

 #246
20140353923
2014-12-04

Piston ring

 #247
20140346737
2014-11-27

Piston seal assembly

 #248
20140339778
2014-11-20

Structure of piston ring

 #249
20140311437
2014-10-23

Piston ring for a piston of an internal combustion engine, and a method for producing same

 #250
20140284882
2014-09-25

Wear protection layer for piston rings

 #251
20140225330
2014-08-14

PISTON RING

 #252
20140225329
2014-08-14

Piston ring

 #253
20140217677
2014-08-07

Piston ring with dual coating

 #254
20140197602
2014-07-17

Piston ring with localized nitrided coating

 #255
20140154454
2014-06-05

Heat Resistant Seal Member

 #256
20140137733
2014-05-22

Piston ring

 #257
20140125013
2014-05-08

Piston ring

 #258
20140117626
2014-05-01

Compression ring and its production method

 #259
20140102599
2014-04-17

Chemical vapor deposition of wear resistant coatings onto piston ring running face, side face, and inner diameter in one coating run

 #260
20140047974
2014-02-20

Piston ring

 #261
20140021686
2014-01-23

Multi-piece oil ring

 #262
20140008874
2014-01-09

Method for producing piston rings

 #263
20130334774
2013-12-19

Structure of Titanium-alloy Piston Ring

 #264
20130334773
2013-12-19

Structure of Piston Ring

 #265
20130328274
2013-12-12

PISTON RING

 #266
20130316156
2013-11-28

Sliding element, in particular a piston ring, having a coating

 #267
20130313774
2013-11-28

Sliding member for sheet-shaped recording material detachment, seal ring for automobile, and seal ring and sliding member for industrial gas compressor

 #268
20130307221
2013-11-21

Piston ring

 #269
20130252860
2013-09-26

Sliding structural members

 #270
20130241154
2013-09-19

Piston ring for engine

 #271
20130234400
2013-09-12

PISTON RING

 #272
20130221621
2013-08-29

PISTON RING

 #273
20130214493
2013-08-22

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