ClassID:

38849

B21D53/20 - CPC Classification

Classification description:

Making other particular articles rings, e.g. barrel hoops washers, e.g. for sealing

Sub-classes:
Recent Application in this class:
#1
20260146681
2026-05-28

PACKING MATERIAL CARTRIDGE

#2
20250062506
2025-02-20

TERMINAL PART FOR A SECONDARY CELL

#3
20240280190
2024-08-22

PACKING MATERIAL CARTRIDGE

#4
20230158561
2023-05-25

WASHER AND METHOD FOR MANUFACTURING THE SAME

#5
20200318686
2020-10-08

METHOD FOR MANUFACTURING A BEARING WASHER

#6
20200063786
2020-02-27

Washer and washer manufacturing method

#7
20190257357
2019-08-22

Method of manufacturing washer and washer

#8
20190240720
2019-08-08

EQUIPMENT AND PROCESSES FOR MAKING GASKETS AND WASHERS WITH ADJUSTABLE DIMENSIONING AND KITS DIRECTED TO THE SAME

#9
20190143395
2019-05-16

Method of manufacturing washers

#10
20180172061
2018-06-21

Method of manufacturing washer and washer

#11
20180169736
2018-06-21

Method of manufacturing washer and washer

#12
20180043415
2018-02-15

Washer and method of manufacturing washers

#13
20170312869
2017-11-02

Process of forming and a seal for an engine

#14
20160101489
2016-04-14

Process of forming and a seal for an engine

#15
20120073348
2012-03-29

METHOD FOR PRODUCING SEALING ELEMENTS

#16
20120073343
2012-03-29

METHOD FOR PRODUCING METAL SEALING ELEMENTS

#17
20120070272
2012-03-22

METHOD FOR PRODUCING METAL ELEMENTS, IN PARTICULAR SEALING ELEMENTS

#18
20120002910
2012-01-05

Thrust ring for undercarriage in a track-type machine

#19
20110085305
2011-04-14

Electronic device, washer and method for manufacturing washer

#20
20110034259
2011-02-10

METHOD OF MAKING A WASHER

#21
20110027039
2011-02-03

Lock washer

#22
20100139075
2010-06-10

PUNCHING METHOD PROVIDING EXTENSION EFFECT

#23
20100000480
2010-01-07

Camshaft adjuster and deep-drawing method for producing a seal cover for a camshaft adjuster

#24
20090235715
2009-09-24

Method for selectively forming (plastic working) at least one region of a sheet metal layer made from a sheet of spring steel, and a device for carrying out this method

#25
20090121442
2009-05-14

METHOD OF MANUFACTURING RING-SHAPED MEMBER, BACKUP RING AND SEAL STRUCTURE FOR FUEL INJECTION VALVE

#26
20090060674
2009-03-05

Washer-lock washer and methods for making and using the same

#27
20080282501
2008-11-20

Annular disc of bent sheet material

#28
20080110308
2008-05-15

PUNCH WORKING APPARATUS AND METHOD

#29
20060017236
2006-01-26

Method for the production of supporting elements for elastomer seals