Patents-Review.com
ClassID:

43562 ⎘

B23P15/002 - CPC Classification

Classification description:

Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings poppet valves

Recent Application in this class:
#1
20230332700
2023-10-19

WELDED CHECK VALVE

 #2
20230017343
2023-01-19

Method for manufacturing engine poppet valve

 #3
20220403761
2022-12-22

Method and device for manufacturing hollow, internally cooled valves

 #4
20220324068
2022-10-13

Poppet valve device, canister vent solenoid and method for improving a poppet valve sealing efficiency

 #5
20220213968
2022-07-07

Welded check valve

 #6
20220168798
2022-06-02

Method for producing a hollow valve for internal combustion engines

 #7
20210245309
2021-08-12

Method of manufacturing engine valve intermediate product with boss portion

 #8
20210187675
2021-06-24

Poppet, assembly, and methods of assembling and using the same

 #9
20210180479
2021-06-17

Poppet valve

 #10
20210148474
2021-05-20

Welded check valve

 #11
20200353576
2020-11-12

Mechanically Retained Seat for Valve Assembly

 #12
20200308998
2020-10-01

Poppet valve for internal combustion engine

 #13
20200132203
2020-04-30

Method for manufacturing a block forged swing check valve body with a fully encapsulated seat ring

 #14
20200039008
2020-02-06

Method for cross-wedge rolling poppet valves

 #15
20190093782
2019-03-28

Pressure-limiting valve

 #16
20180313238
2018-11-01

Exhaust valve for an internal combustion engine, and a method of strengthening an annular valve seat area in an exhaust valve

 #17
20180298793
2018-10-18

Method and device for manufacturing metallic-sodium-filled engine valve

 #18
20180264530
2018-09-20

Highly-viscous substance dispensing method and highly-viscous substance dispensing apparatus

 #19
20180104776
2018-04-19

Precision forming method of high-efficiency and near-net hollow valve blank of engine

 #20
20180045618
2018-02-15

DIAMOND SINTERED SAMPLING RELIEF VALVE

 #21
20180045121
2018-02-15

Metering valve assembly and method of assembly thereof

 #22
20180038495
2018-02-08

Passive exhaust valve with external torsion spring

 #23
20180038494
2018-02-08

Passive exhaust valve with dual torsion spring

 #24
20170348782
2017-12-07

Method for producing a hollow valve

 #25
20170291268
2017-10-12

Method of making a valve stem seal with formable retainer tabs

 #26
20170276031
2017-09-28

Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediate

 #27
20170211712
2017-07-27

Composite sandwich panels for oilfield valve

 #28
20170211434
2017-07-27

Poppet valve and method for manufacturing same

 #29
20170122146
2017-05-04

Combustion engine intake valve

 #30
20170030471
2017-02-02

Multiple parts reed valve and method of manufacturing

 #31
20160356186
2016-12-08

Hollow poppet valve

 #32
20160279746
2016-09-29

Method of charging a hollow valve with metallic sodium

 #33
20160256965
2016-09-08

Method of manufacturing a hollow poppet valve

 #34
20160238146
2016-08-18

Automatic ring valve shutters for automatic ring valves and method for manufacturing said shutters

 #35
20160186620
2016-06-30

MULTI-MATERIAL VALVE GUIDE SYSTEM AND METHOD

 #36
20160153320
2016-06-02

Valve-actuating lever for reciprocating-piston internal combustion engines

 #37
20150377089
2015-12-31

Valve for internal combustion engines and method for obtaining a valve

 #38
20150354727
2015-12-10

Hollow poppet valve

 #39
20150329297
2015-11-19

Workpiece inspection equipment

 #40
20150300506
2015-10-22

Poppet valve with a formed seat, and method of making

 #41
20150284938
2015-10-08

Pop-Up Stopper for Bathroom Sinks with Hair Filter and Compatible with Current Pop-Up Stopper Design

 #42
20150276075
2015-10-01

Motorized sleeve valve

 #43
20150275343
2015-10-01

Iron-base sintered alloy material for valve seat insert and method for manufacturing the same

 #44
20150240675
2015-08-27

Hollow poppet valve

 #45
20150030484
2015-01-29

Multiple parts reed valve and method of manufacturing

 #46
20150000130
2015-01-01

Method of manufacturing a valve for an internal combustion engine

 #47
20140366373
2014-12-18

Method for producing a hollow engine valve

 #48
20140360452
2014-12-11

Method for producing a built hollow valve

 #49
20140360014
2014-12-11

METHOD FOR PRODUCING A BUILT HOLLOW VALVE OF AN INTERNAL COMBUSTION ENGINE

 #50
20140352803
2014-12-04

Hollow poppet valve

 #51
20140283384
2014-09-25

Method of manufacturing a valve for an internal combustion engine

 #52
20140191150
2014-07-10

Poppet valve with a formed seat, and method of making

 #53
20140090251
2014-04-03

METHOD FOR MAKING LUBRICATION SPRAY ORIFICE FOR VALVE ACTUATING MECHANISM

 #54
20140033533
2014-02-06

Method for manufacturing hollow engine valve

 #55
20140033532
2014-02-06

Method for production of valve head portion of hollow engine valve and hollow engine valve

 #56
20130313463
2013-11-28

Method for production of valve head portion of hollow engine valve and hollow engine valve

 #57
20130019474
2013-01-24

Method for producing engine valve in which sodium metal is sealed

 #58
20120304464
2012-12-06

METHOD FOR MANUFACTURING HOLLOW ENGINE VALVE

 #59
20120255175
2012-10-11

Method for producing hollow engine valve

 #60
20120246936
2012-10-04

METHOD FOR PRODUCING METALLIC-SODIUM-FILLED ENGINE VALVE

 #61
20120246934
2012-10-04

Method for producing metallic-sodium-filled engine valve

 #62
20120199092
2012-08-09

Intake valve of internal combustion engine

 #63
20110186000
2011-08-04

Hollow poppet valve and method of manufacturing the same

 #64
20110174259
2011-07-21

Method for production of valve head portion of hollow engine valve and hollow engine valve

 #65
20090094830
2009-04-16

Valve for Controlling Gas Exchange, Especially in Internal Combustion Engines

 #66
20080014457
2008-01-17

Mass production of tridimensional articles made of intermetallic compounds

 #67
20080006793
2008-01-10

Valve for Controlling Gas Exchange, Especially in Internal Combustion Engines

 #68
20070145322
2007-06-28

Lightweight valve

 #69
20070068477
2007-03-29

Engine valve, method of manufacturing same, and cylinder head incorporating same

 #70
20060005792
2006-01-12

Lightweight valve