ClassID:

153385

F16L55/1108 - CPC Classification

Classification description:

Devices or appurtenances for use in, or in connection with, pipes or pipe systems; Means for stopping flow from or in pipes or hoses; Plugs fixed by screwing or by means of a screw-threaded ring

Recent Application in this class:
#1
20250312901
2025-10-09

SYSTEM AND METHOD FOR INSTALLING A MANIFOLD PLUG

#2
20250312900
2025-10-09

SYSTEM AND METHOD FOR INSTALLING A MANIFOLD PLUG

#3
20250205865
2025-06-26

System and Method for Installing a Manifold Plug

#4
20250172229
2025-05-29

DEVICE FOR INTERNAL PLUGGING OF FLEXIBLE PIPELINES AND METHOD OF INSTALLING THE DEVICE

#5
20250122969
2025-04-17

TEST PLUG FOR SPRINKLER ADAPTER

#6
20250060063
2025-02-20

APPARATUS FOR REMOVABLE MOUNTING OF A HOSE INTO AN AIR-CONDITIONING DUCT

#7
20250060062
2025-02-20

APPARATUS FOR REMOVABLE MOUNTING OF A HOSE INTO AN AIR-CONDITIONING DUCT

#8
20250020259
2025-01-16

CLEAN OUT PLUG

#9
20240301982
2024-09-12

EXPANSION PLUG AND SYSTEM AND METHOD EMPLOYING SAME

#10
20240255090
2024-08-01

FLOW RESTRICTION SYSTEM

#11
20240246206
2024-07-25

System and method for installing a manifold plug

#12
20240159341
2024-05-16

Polyethylene pipe service system including quick connect means for polyethylene pipe tapping, plugging, and completion operations

#13
20240123586
2024-04-18

System and method for installing a manifold plug

#14
20230400138
2023-12-14

DEVICE FOR WINTERIZING PLUMBING

#15
20230278176
2023-09-07

System and method for installing a manifold plug

#16
20230243454
2023-08-03

ANTI-ROTATION SYSTEMS FOR PUMP ACCESS COVER RETAINERS

#17
20230167934
2023-06-01

PLUGS FOR ANCHORING WITHIN EQUIPMENT AND METHODS OF USE FOR PRESSURE TESTING

#18
20230124018
2023-04-20

Plug removal tool and methods thereof

#19
20230028167
2023-01-26

Plumbing fitting

#20
20220390055
2022-12-08

Packing bore wear sleeve retainer system

#21
20220362912
2022-11-17

System and method for installing a manifold plug

#22
20220290931
2022-09-15

Heat exchanger tube plug

#23
20220213916
2022-07-07

Sealing plug

#24
20220178281
2022-06-09

Extended orifice plug for a fluid system

#25
20210404591
2021-12-30

Flow restriction system

#26
20210388928
2021-12-16

Polyethylene pipe service system including quick connect means for polyethylene pipe tapping, plugging, and completion operations

#27
20210310596
2021-10-07

Apparatus for sealing a pipe

#28
20210308846
2021-10-07

System and method for installing a manifold plug

#29
20210293365
2021-09-23

Trench-less plug assembly

#30
20210247012
2021-08-12

Sealing plug system

#31
20210199229
2021-07-01

Threaded plug and protective element for a plug

#32
20210164599
2021-06-03

Method of masking a hole in a part

#33
20210146328
2021-05-20

Flow reactor plug

#34
20210129730
2021-05-06

Breather valve

#35
20210102393
2021-04-08

FLOAT FEEDER DEVICE FOR REGULATING THE FLOW OF CONCENTRATED CHLORINATED WATER FROM A CHLORINE GENERATOR

#36
20210095808
2021-04-01

Flushing Lid Accessories

#37
20210088167
2021-03-25

Retainer nut locking apparatus and methods

#38
20210041049
2021-02-11

High pressure plug

#39
20210039234
2021-02-11

System and method for installing a manifold plug

#40
20200284386
2020-09-10

Polyethylene pipe service system including quick connect means for polyethylene pipe tapping, plugging, and completion operations

#41
20200248859
2020-08-06

Closure apparatus

#42
20200230827
2020-07-23

Valve operating device having a movable arm for use in exercising valves

#43
20200132240
2020-04-30

Plug removal tool and methods thereof

#44
20200132234
2020-04-30

Fitting for connecting a main pipe liner to a branch conduit

#45
20200072403
2020-03-05

Pipe sealing device and methods of using the same

#46
20190331280
2019-10-31

High pressure plug

#47
20190331279
2019-10-31

Closing-off plug for pipe ends stopping high pressure shocks

#48
20190316725
2019-10-17

AN APPARATUS FOR SEALING A PIPE

#49
20190250061
2019-08-15

Apparatus for hydrostatic testing

#50
20190203563
2019-07-04

Degradable plug for a downhole tubular

#51
20190145555
2019-05-16

In-tube fixing assembly

#52
20190145455
2019-05-16

Fasteners with reduced bacterial harborage points, sealing capabilities, and component protection features

#53
20190143538
2019-05-16

End of arm tools for soft robotic systems

#54
20190136893
2019-05-09

Insert and system for providing a calibrated metering orifice

#55
20190128463
2019-05-02

Plug system for increased retention and sealing

#56
20190093613
2019-03-28

Fuel distributor

#57
20180318992
2018-11-08

System and method for installing a manifold plug

#58
20180306369
2018-10-25

Push plug type line stop branch assembly

#59
20180274711
2018-09-27

Protector for threaded end of a tubular component with flexible seal

#60
20180216773
2018-08-02

Fusion tee outlet abandonment device

#61
20180202585
2018-07-19

Apparatus for hydrostatic testing

#62
20180195658
2018-07-12

Masking plug for protecting a surface during a finishing operation and method

#63
20180163928
2018-06-14

Depressurizer

#64
20180051843
2018-02-22

Pipe Multifold Line Plug

#65
20180051842
2018-02-22

Pipe multifold line plug with fluid opening

#66
20170106943
2017-04-20

Bicycle hydraulic component

#67
20170052086
2017-02-23

Test plug for a pipe elbow

#68
20160377191
2016-12-29

Flush-mount NPT plug

#69
20160245408
2016-08-25

Blocking configuration of oil pressure circuit hole

#70
20160141120
2016-05-19

On-load tap changer, method for installing a load transfer switch insert in the on-load tap changer, and kerosene drain screw

#71
20160084421
2016-03-24

Hose coupling

#72
20160053931
2016-02-25

Temporary night pipe cap

#73
20160040819
2016-02-11

Assembly for blocking cooling water channel in mold

#74
20150369689
2015-12-24

Gripper for test and isolation plugs

#75
20150369407
2015-12-24

Air aspiration device

#76
20150362114
2015-12-17

Apparatus for closing and sealing the open end of a pipe

#77
20150300760
2015-10-22

Maximum expansion plug for heat exchanger tubes

#78
20150300553
2015-10-22

Maximum expansion plug for heat exchanger tubes

#79
20150202754
2015-07-23

System and method for installing a manifold plug

#80
20150176731
2015-06-25

Flanged fittings for pipeline

#81
20150122363
2015-05-07

Sealing plug

#82
20150053294
2015-02-26

Sealing plug for quick closing coupling system

#83
20150041472
2015-02-12

Connector assembly usable as a closure and to establish a fluid connection

#84
20150041015
2015-02-12

Block-Off Plate Assembly for Carburetor Float Bowl

#85
20140216571
2014-08-07

Valve access conduit assembly and method of installing the assembly

#86
20140216568
2014-08-07

Valve access conduit assembly and method of installing the assembly

#87
20140215827
2014-08-07

Valve access conduit assembly and method of installing the assembly

#88
20140209199
2014-07-31

PIPE SEALING DEVICE

#89
20140182728
2014-07-03

Bore plug

#90
20140060689
2014-03-06

Threaded plug for hammer union and assembly thereof

#91
20140056666
2014-02-27

Self-locking sealing device

#92
20130319564
2013-12-05

Plumbing elbow

#93
20130313450
2013-11-28

Tube clamping and closing device

#94
20130277368
2013-10-24

End cap for a hydraulic fitting

#95
20130239315
2013-09-19

Drain clean-out assembly and method of using

#96
20130146167
2013-06-13

Molded composite mandrel for a downhole zonal isolation tool

#97
20130139905
2013-06-06

Flow module port fitting

#98
20130001891
2013-01-03

SEALING ASSEMBLY

#99
20120279965
2012-11-08

Sealed stopper for an opening in a tubing for joining a chamber and a piping, particularly in the steam generator of a nuclear pressurised water reactor

#100
20120266971
2012-10-25

Sprinkler canister seal

#101
20120211209
2012-08-23

Structure for connecting refrigerant pipe and air conditioner having the same

#102
20120085453
2012-04-12

END PLUG

#103
20120076613
2012-03-29

Male fastening tool

#104
20120024415
2012-02-02

End cap for a hydraulic fitting

#105
20110284153
2011-11-24

Method of making a molded composite mandrel

#106
20110258834
2011-10-27

Bore plug

#107
20110240143
2011-10-06

Air aspiration device

#108
20110236138
2011-09-29

METHOD FOR REPAIRING AND REINFORCING UNDERGROUND PIPES

#109
20110203094
2011-08-25

DEVICE FOR REMOVING A SEWAGE LINE CAP

#110
20110030132
2011-02-10

MULTI-FUNCTION CLEANOUT PLUG AND METHOD OF USE

#111
20100282330
2010-11-11

BURST PLUG

#112
20100243089
2010-09-30

Working fluid feeding device

#113
20100229989
2010-09-16

Plug with engagement members

#114
20100180617
2010-07-22

Positive shutoff device for a connection point of a refrigeration system

#115
20100163131
2010-07-01

System for pressure testing waste and overflow from a bathtub

#116
20100037969
2010-02-18

Pipe plug with a locating appliance

#117
20090315324
2009-12-24

End cap for a hydraulic fitting

#118
20090120940
2009-05-14

Two-piece expandable sealing plug

#119
20090011247
2009-01-08

Molded Composite Mandrel for a Downhole Zonal Isolation Tool

#120
20080314468
2008-12-25

Cap or Plate With Electronic Or Magnetic Marker

#121
20080295911
2008-12-04

Hose inflation adapter kit

#122
20080258398
2008-10-23

SEAL

#123
20080202596
2008-08-28

Air Bleeding Pipe Joint

#124
20080111322
2008-05-15

Seal structure of high-pressure tank

#125
20080029176
2008-02-07

Plug for a hydraulic fitting

#126
20080012241
2008-01-17

Cross flange seal for a pressure vessel, especially for a turbomachine casing

#127
20080000907
2008-01-03

Method of applying a high pressure closure

#128
20070175944
2007-08-02

End cap of air-driven tool

#129
20070095414
2007-05-03

Working fluid feeding device

#130
20060207656
2006-09-21

Air bleeding pipe joint

#131
20060049372
2006-03-09

Valve assembly for water storage bladder

#132
20050247711
2005-11-10

High pressure closure

#133
20050189027
2005-09-01

Plumbing test plug and method

#134
20050109413
2005-05-26

Twist off drive for a tube plug

#135
20050017009
2005-01-27

Tank closure

#136
18818059
2025-06-24

System and method for installing a manifold plug

#137
18405908
2024-06-18

Dome cap and tailplug assembly

#138
16784097
2020-11-24

Sealing plug system

#139
15649671
2019-02-26

Removable oil pipeline branch plug

#140
15009625
2018-05-29

Universal plug

#141
14048220
2015-10-06

Impact hex thread protectors

#142
14043596
2015-06-16

Friction stir weld plugs and methods of using thereof