F16J9/18 - CPC Classification Index

ClassID:

151760 ⎘

F16J9/18 - CPC Classification

Classification description:

Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction; Details; Joint-closures with separate bridge-elements

Recent Application in this class:

20250198512

2025-06-19

PISTON RING ASSEMBLY

20250067340

2025-02-27

PISTON SEALING RING ASSEMBLY HAVING A GAP COVER ELEMENT

20230375086

2023-11-23

Piston sealing ring assembly having a gap cover element

20220325710

2022-10-13

Piston for reciprocating compressor having complementary sealing elements

20210388901

2021-12-16

Piston sealing ring assembly having a gap cover element

20210180694

2021-06-17

Cryogenic piston ring improvement

20210164567

2021-06-03

Piston Ring Structure with Positioning Function

20190049006

2019-02-14

Piston sealing ring assembly having a gap cover element

20160222960

2016-08-04

High-pressure fuel pump

#10

20150252900

2015-09-10

Piston ring

#11

20090179386

2009-07-16

Gastight piston ring arrangement

#12

20080309021

2008-12-18

Packing Seal and Piston Comprising Such a Packing Seal

#13

20080122185

2008-05-29

Combined oil ring