Patents-Review.com
ClassID:

151763 ⎘

F16J9/206 - CPC Classification

Classification description:

Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction; Details; Rings with special cross-section ; Oil-scraping rings One-piece oil-scraping rings

Recent Application in this class:
#1
20250188855
2025-06-12

Two-Stroke Engine, Lubrication Device, and Cylinder

 #2
20230296173
2023-09-21

OIL SCRAPER RING AND PISTON RING SET FOR AN INTERNAL COMBUSTION ENGINE

 #3
20230228329
2023-07-20

OIL SCRAPER RING FOR PISTONS OF AN INTERNAL COMBUSTION ENGINE

 #4
20220186833
2022-06-16

Scraper ring for a piston

 #5
20220034280
2022-02-03

Piston for an internal combustion engine

 #6
20210381597
2021-12-09

Cylinder of an internal combustion engine

 #7
20210381596
2021-12-09

Oil ring for internal combustion engine and piston assembly including the same

 #8
20210239214
2021-08-05

Piston for an internal combustion engine

 #9
20200378498
2020-12-03

Play-free oil scraper ring

 #10
20200141491
2020-05-07

OIL SCRAPER PISTON RING

 #11
20200080638
2020-03-12

Method for producing piston ring with recess

 #12
20200049252
2020-02-13

ONE PIECE OIL CONTROL RING FOR INTERNAL COMBUSTION ENGINE

 #13
20190257424
2019-08-22

Piston ring for engine

 #14
20190178380
2019-06-13

Two part oil control ring having oil pressure effect ridges

 #15
20190154152
2019-05-23

One-piece oil control ring

 #16
20190136976
2019-05-09

Compression oil control piston ring

 #17
20180363778
2018-12-20

Multi-piece oil ring

 #18
20180274675
2018-09-27

PISTON RING WITH VARYING APEX LINES

 #19
20180209540
2018-07-26

PISTON RING

 #20
20180038484
2018-02-08

Piston assembly

 #21
20180017159
2018-01-18

Piston ring

 #22
20170335965
2017-11-23

Method for producing piston ring with recess

 #23
20170327918
2017-11-16

PROCESS FOR OBTAINING A PISTON RING AND INTERNAL COMBUSTION ENGINE

 #24
20170184198
2017-06-29

OIL RING

 #25
20170159820
2017-06-08

Pressure released wiper assembly

 #26
20170122248
2017-05-04

Piston, oil control ring therefor and method of construction thereof

 #27
20170016537
2017-01-19

OIL SCRAPER PISTON RING AND METHOD FOR PRODUCING AN OIL SCRAPER PISTON RING

 #28
20170009887
2017-01-12

Piston ring configured to reduce friction

 #29
20160305546
2016-10-20

Wiper

 #30
20160076649
2016-03-17

Oil ring

 #31
20160040622
2016-02-11

PISTON ASSEMBLY FOR A RECIPROCATING ENGINE

 #32
20150292621
2015-10-15

Single-piece oil control ring

 #33
20150198249
2015-07-16

Taper-faced compression ring and wire therefor

 #34
20150130143
2015-05-14

Method for producing an oil scraper piston ring

 #35
20140311437
2014-10-23

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

 #36
20140000549
2014-01-02

COMPRESSION RING FOR AN ENGINE

 #37
20130213219
2013-08-22

Piston ring for an internal combustion engine

 #38
20130187341
2013-07-25

Method for producing a piston ring

 #39
20130187340
2013-07-25

Method for producing a piston ring

 #40
20130181411
2013-07-18

Method for producing a piston ring

 #41
20120261886
2012-10-18

Multi-piece oil ring

 #42
20120205876
2012-08-16

PISTON RING

 #43
20120112418
2012-05-10

Oil control ring with ferrous body less than 2.0 millimeters high for internal combustion engines

 #44
20100326394
2010-12-30

Scraper ring lubrication system for the upper portion of a piston and adjacent cylinder liner of an internal combustion engine

 #45
20100117305
2010-05-13

Piston ring for the piston of an internal combustion engine

 #46
20090174150
2009-07-09

LATERAL SIDE PROTECTION OF A PISTON RING WITH A THERMALLY SPRAYED COATING

 #47
20080252019
2008-10-16

OIL SEALING RING

 #48
20070018410
2007-01-25

Oil scraper ring for pistons of internal combustion engines

 #49
20060273525
2006-12-07

Multipart oil wiping ring for pistons of internal combustion engines

 #50
20060006604
2006-01-12

Oil ring

 #51
20050184466
2005-08-25

Steel piston ring