ClassID:

151767

F16J9/28 - CPC Classification

Classification description:

Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction of non-metals

Recent Application in this class:
#1
20260022799
2026-01-22

HIGH TEMPERATURE SEALING SYSTEM FOR AN AXIALLY EXPANDING VOLUME

#2
20250341253
2025-11-06

PISTON RING

#3
20250250970
2025-08-07

SEALING RING ASSEMBLIES CONFIGURED FOR PRESSURE LOCKING

#4
20250188921
2025-06-12

COMPRESSOR

#5
20250027564
2025-01-23

PISTON RING

#6
20240125386
2024-04-18

PISTON RING

#7
20240011452
2024-01-11

Internal combustion engine with reduced oil maintenance

#8
20230417238
2023-12-28

Using silicone o-rings in dual action irrigation pump

#9
20230184332
2023-06-15

Piston ring arrangement, piston compressor and method for sealing a compression chamber

#10
20230120454
2023-04-20

WEAR RING AND WEAR RING ARRANGEMENT

#11
20230097245
2023-03-30

Internal combustion engine with reduced oil maintenance

#12
20230072947
2023-03-09

Sealing ring assemblies configured for pressure locking

#13
20230003300
2023-01-05

Combination of cylinder and piston ring

#14
20220186016
2022-06-16

Resin composition, molded article, and automatic transmission

#15
20220074493
2022-03-10

Reinforced sealing rings

#16
20210355892
2021-11-18

Internal combustion engine

#17
20210270370
2021-09-02

Piston ring

#18
20210164567
2021-06-03

Piston Ring Structure with Positioning Function

#19
20210087996
2021-03-25

Internal combustion engine

#20
20200408302
2020-12-31

COMPRESSOR

#21
20200362966
2020-11-19

Reinforced sealing rings

#22
20200340582
2020-10-29

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

#23
20200208627
2020-07-02

Using silicone o-rings in dual action irrigation pump

#24
20200088298
2020-03-19

Rod packing

#25
20200056030
2020-02-20

SEALING ELEMENT AND/OR GUIDE RING MADE OF A COMPOSITION OF POLYTETRAFLUOROETHYLENE, PERFLUOROALKOXY POLYMER, AND FILLER

#26
20200011417
2020-01-09

Sealing ring assemblies configured for pressure locking

#27
20190346043
2019-11-14

Piston ring having a stepped running surface

#28
20190154153
2019-05-23

Sliding element for internal combustion engines

#29
20190049013
2019-02-14

Sealing ring assemblies configured for pressure locking

#30
20190049012
2019-02-14

Reinforced sealing rings

#31
20190049007
2019-02-14

SEALING RING HAVING A POROUS LAYER

#32
20180017160
2018-01-18

SEALING DEVICE

#33
20170343109
2017-11-30

Sealing device

#34
20170335964
2017-11-23

Sliding member and method for producing same

#35
20170299056
2017-10-19

Oil Ring for a Piston Assembly

#36
20170138476
2017-05-18

PISTON RING FOR INTERNAL COMBUSTION ENGINE

#37
20170130841
2017-05-11

Coated sliding element

#38
20170074400
2017-03-16

Ti—Si—C—N piston ring coatings

#39
20160369391
2016-12-22

Ti—Si—C—N piston ring coatings

#40
20160312891
2016-10-27

Coated sliding element

#41
20160305546
2016-10-20

Wiper

#42
20160305423
2016-10-20

HIGH PRESSURE PUMP SEAL SUPPORT

#43
20160265660
2016-09-15

Piston ring for internal combustion engine

#44
20160235919
2016-08-18

Prefilled syringe, gasket for use in prefilled syringe, and gasket production method

#45
20160215882
2016-07-28

PRESSURE RING

#46
20160186860
2016-06-30

Highly heat conductive piston ring for internal combustion engine

#47
20160178054
2016-06-23

PISTON RING AND METHOD OF PRODUCING THE SAME

#48
20160169387
2016-06-16

Piston ring and method for manufacturing same

#49
20160153559
2016-06-02

Polyurethane elastomeric seal for hydraulic pumps

#50
20160146347
2016-05-26

Seal set and sealing arrangement comprising at least one seal set

#51
20160122862
2016-05-05

Method for producing piston a ring

#52
20160033044
2016-02-04

Seal device

#53
20160003356
2016-01-07

Hard carbon coating film

#54
20150362072
2015-12-17

Sliding member and method for producing same

#55
20150292622
2015-10-15

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

#56
20150266984
2015-09-24

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

#57
20150252901
2015-09-10

Wear-protection layer for piston rings

#58
20150252900
2015-09-10

Piston ring

#59
20150233371
2015-08-20

Reciprocating-rod seal

#60
20150226327
2015-08-13

Piston ring

#61
20150010341
2015-01-08

Lockable joint

#62
20140378900
2014-12-25

Osmotic delivery systems and piston assemblies for use therein

#63
20140264128
2014-09-18

Composite dynamic valve seal assembly for high temperature control valves

#64
20130154197
2013-06-20

Seal arrangement

#65
20130014725
2013-01-17

Internal Combustion Engine

#66
20120325083
2012-12-27

PISTON GUIDE RING COMPRISING POLYAMIDE-POLY(ARYLENE ETHER) COMPOSITION

#67
20120235360
2012-09-20

Sealing device

#68
20110166554
2011-07-07

Osmotic delivery systems and piston assemblies for use therein

#69
20100185184
2010-07-22

Osmotic delivery systems and piston assemblies for use therein

#70
20090243224
2009-10-01

Resin seal ring and manufacturing method

#71
20090189354
2009-07-30

RECIPROCATING-ROD SEAL

#72
20080265518
2008-10-30

PISTON RING AND A FLUID SUCKING/DISCHARGE DEVICE WITH THE PISTON RING

#73
20080127819
2008-06-05

Piston ring comprising a coated running surface, and coating agent

#74
20080091176
2008-04-17

Osmotic delivery systems and piston assemblies for use therein

#75
20080060604
2008-03-13

Internal combustion engine

#76
20070193553
2007-08-23

Internal combustion engine

#77
20070193552
2007-08-23

Internal combustion engine

#78
20070193551
2007-08-23

Internal combustion engine

#79
20070193550
2007-08-23

Internal combustion engine

#80
20070193549
2007-08-23

Internal combustion engine

#81
20050279802
2005-12-22

Seal for portable fastener driving tool

#82
18623057
2025-01-21

Wear-resistant and low-friction coated piston ring and preparation method therefor

#83
13958489
2018-04-17

Linear actuator