ClassID:

151759

F16J9/16 - CPC Classification

Classification description:

Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction; Details; Joint-closures obtained by stacking of rings

Recent Application in this class:
#1
20260117865
2026-04-30

Synchronous Rotation Gapless Piston Rings

#2
20250383047
2025-12-18

PRESSURE BOOSTING PUMP AND HYDROGEN SUPPLY SYSTEM

#3
20250250970
2025-08-07

SEALING RING ASSEMBLIES CONFIGURED FOR PRESSURE LOCKING

#4
20250060035
2025-02-20

PISTON SEALING RING ASSEMBLIES

#5
20240255055
2024-08-01

Piston Seal Ring Bypass

#6
20240044407
2024-02-08

Piston ring for a piston compressor

#7
20230349465
2023-11-02

LATERALLY MOVEABLE COMPRESSOR PISTON ROD LIP SEAL ASSEMBLY

#8
20230304580
2023-09-28

PISTON RING

#9
20230184332
2023-06-15

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

#10
20230072947
2023-03-09

Sealing ring assemblies configured for pressure locking

#11
20220403932
2022-12-22

Piston ring

#12
20220356948
2022-11-10

Piston sealing ring assemblies

#13
20220074493
2022-03-10

Reinforced sealing rings

#14
20210180694
2021-06-17

Cryogenic piston ring improvement

#15
20210156371
2021-05-27

Piston ring and compressor

#16
20200362966
2020-11-19

Reinforced sealing rings

#17
20200200271
2020-06-25

COMBINED PISTON STRUCTURE FOR COMPRESSOR

#18
20200141674
2020-05-07

Firearm systems and methods

#19
20200124175
2020-04-23

Piston-integrated gap cover

#20
20200011417
2020-01-09

Sealing ring assemblies configured for pressure locking

#21
20190390770
2019-12-26

Piston sealing ring assemblies

#22
20190195363
2019-06-27

PISTON RING

#23
20190049013
2019-02-14

Sealing ring assemblies configured for pressure locking

#24
20190049012
2019-02-14

Reinforced sealing rings

#25
20190049009
2019-02-14

Piston sealing ring assemblies

#26
20190049008
2019-02-14

Piston-integrated gap cover

#27
20180258889
2018-09-13

EGR valve including seal ring

#28
20170356547
2017-12-14

Piston ring assembly

#29
20170045317
2017-02-16

Firearm systems and methods

#30
20160047612
2016-02-18

Firearm systems and methods

#31
20140298984
2014-10-09

Two-part stationary ring for devices having pistons

#32
20130154197
2013-06-20

Seal arrangement

#33
20130032119
2013-02-07

Two-piece compression piston ring of an internal combustion engine

#34
20120180648
2012-07-19

Firearm

#35
20110089641
2011-04-21

Two-piece sealing device

#36
20100164182
2010-07-01

MULTI-PART OIL SCRAPER RING FOR INTERNAL COMBUSTION ENGINES

#37
20090289421
2009-11-26

Durable piston and a ring unit for the durable piston

#38
20080309021
2008-12-18

Packing Seal and Piston Comprising Such a Packing Seal

#39
20080067753
2008-03-20

Seal assembly

#40
20070059954
2007-03-15

Two-piece sealing device

#41
20060249913
2006-11-09

Gapless piston ring for preventing blow-by

#42
20050189725
2005-09-01

Multi-layered seal structure

#43
20050184465
2005-08-25

Seal assembly manufacturing methods

#44
20050051970
2005-03-10

Piston ring