ClassID:

120688

C23F2213/31 - CPC Classification

Classification description:

Aspects of inhibiting corrosion of metals by anodic or cathodic protection; Anodic or cathodic protection specially adapted for a specific object Immersed structures, e.g. submarine structures

Recent Application in this class:
#1
20260079097
2026-03-19

A MEASURING UNIT

#2
20250377286
2025-12-11

METHOD AND SYSTEM FOR CORROSION PROTECTION

#3
20250236376
2025-07-24

A THRUST GENERATING ASSEMBLY

#4
20250198011
2025-06-19

CATHODIC PROTECTION DEVICE FOR USE IN AN IMPRESSED CURRENT CATHODIC PROTECTION SYSTEM

#5
20240240326
2024-07-18

DEVICE, SYSTEM AND METHOD FOR PROTECTING A SUBSEA MOORING CHAIN FROM CORROSION

#6
20240183039
2024-06-06

DEVICE FOR THE CATHODIC PROTECTION OF METAL COMPONENTS OF BOATS

#7
20240052500
2024-02-15

Cathodic protection of metal substrates

#8
20230366677
2023-11-16

Magnetically coupled integrated ultrasonic testing and cathodic protection measurement probe

#9
20230235463
2023-07-27

SYSTEM AND METHOD FOR CATHODIC PROTECTION BY DISTRIBUTED SACRIFICIAL ANODES

#10
20220380907
2022-12-01

PROPELLER ARRANGEMENT IN A CATHODIC PROTECTION SYSTEM

#11
20220363354
2022-11-17

Cathodic protection and anti-fouling arrangement and method

#12
20220349065
2022-11-03

MARINE SALINITY MEASURING ARRANGEMENT AND METHOD

#13
20210239465
2021-08-05

Magnetically coupled integrated ultrasonic testing and cathodic protection measurement probe

#14
20210198789
2021-07-01

SYSTEMS, APPARATUSES, AND METHODS TO ASSESS CORROSION PREVENTION

#15
20210180195
2021-06-17

Offshore tension anode system and installation method thereof

#16
20210172073
2021-06-10

Selectively removable marine engine anode

#17
20210094660
2021-04-01

Devices, methods, and systems for underwater surveying

#18
20200378082
2020-12-03

Offshore installation

#19
20200248319
2020-08-06

Integrated Impressed Current Cathodic Protection for Wet Crude Handling Vessels

#20
20200232103
2020-07-23

Cathodic protection for offshore wind turbine steel support structures

#21
20200216966
2020-07-09

Cathodic protection of metal substrates

#22
20200156748
2020-05-21

Propeller

#23
20200109478
2020-04-09

System for impressed current cathodic protection

#24
20200041458
2020-02-06

Underwater vehicles with integrated surface cleaning and inspection

#25
20200017977
2020-01-16

Real-time cathodic protection integrity monitoring sensor, system and method

#26
20200017178
2020-01-16

ANTI-BIOFOULING METHOD AND ANTI-BIOFOULING APPARATUS

#27
20190352872
2019-11-21

Load arrangement for powering a load

#28
20190226095
2019-07-25

Autonomous impressed current cathodic protection device on metal surfaces with a spiral magnesium anode

#29
20190113160
2019-04-18

Flange tab system

#30
20190085468
2019-03-21

Systems and methods for providing monitored and controlled cathodic protection potential

#31
20190071842
2019-03-07

Hydraulic excavation and delivery device

#32
20190011403
2019-01-10

Underwater vehicles with integrated surface cleaning and inspection

#33
20180372615
2018-12-27

Integrated ultrasonic testing and cathodic protection measurement probe

#34
20180363149
2018-12-20

Systems, apparatuses, and methods to assess corrosion prevention

#35
20180298705
2018-10-18

Method of installing an unbonded flexible pipe

#36
20180290717
2018-10-11

Underwater vehicle for inspection of a subsea structure in a body of water and related method

#37
20180282880
2018-10-04

Sacrificial Collar

#38
20180230604
2018-08-16

Anode assembly for cathodic protection of offshore steel piles

#39
20180187314
2018-07-05

CATHODIC PROTECTION OF METAL SUBSTRATES

#40
20180171486
2018-06-21

Anode Clamp Assembly and Use of Such Assembly

#41
20180073975
2018-03-15

Integrated ultrasonic testing and cathodic protection measurement probe

#42
20180073867
2018-03-15

Magnetically coupled integrated ultrasonic testing and cathodic protection measurement probe

#43
20180066368
2018-03-08

Marine utility cast iron anode

#44
20170240259
2017-08-24

Improvements to a propeller

#45
20170233977
2017-08-17

Corrosion-resistant fluid membrane

#46
20170057605
2017-03-02

Photovolatic powered cathodic protection probe

#47
20160257390
2016-09-08

Pump device and ship propulsion machine

#48
20160237575
2016-08-18

System, apparatus, and method of providing cathodic protection to buried and/or submerged metallic structures

#49
20160138173
2016-05-19

Marine cathodic protection system

#50
20150291974
2015-10-15

Artificial plant promoter activated by broad spectrum of xanthomonas

#51
20150266754
2015-09-24

System and method for regulating conductivity of cooling water from a cooling water recirculation system

#52
20150218712
2015-08-06

System and method for providing corrosion protection of metallic structure using time varying electromagnetic wave

#53
20150184788
2015-07-02

Pipeline and methods

#54
20150180145
2015-06-25

Electrical connector for an anode

#55
20150159281
2015-06-11

Cathodic protection device with joining mechanisms and articulated bars

#56
20150021200
2015-01-22

Protecting a metal surface from corrosion

#57
20140069804
2014-03-13

Anode device and maintenance method

#58
20140069803
2014-03-13

Anode device and maintenance method

#59
20140049399
2014-02-20

Power supply and voltage multiplication for submerged subsea systems based on cathodic protection system

#60
20140027306
2014-01-30

Cathodic protection of a concrete structure

#61
20130228471
2013-09-05

Adaptive active cathodic protection

#62
20130118916
2013-05-16

Treatment process for concrete

#63
20130118915
2013-05-16

Sacrificial anode

#64
20120308185
2012-12-06

Underwater optical fibre cable

#65
20120305386
2012-12-06

Cathodic protection system for marine applications

#66
20120298525
2012-11-29

Method for protecting electrical poles and galvanized anchors from galvanic corrosion

#67
20120234692
2012-09-20

REPLACEABLE CP ANODES

#68
20120152559
2012-06-21

System and method for cathodic protection of a subsea well-assembly

#69
20120073961
2012-03-29

Electric corrosion preventing structure of marine vessel propelling machine

#70
20120031750
2012-02-09

Multipurpose segmented sacrificial anode

#71
20110168571
2011-07-14

Treatment process for concrete

#72
20110129302
2011-06-02

Cathodic protection monitoring

#73
20110089048
2011-04-21

Auxiliary device, a marine surface vessel and a method for a sacrificial anode in a marine construction

#74
20110083973
2011-04-14

Auxiliary device, a marine surface vessel, and a method for corrosion protection in a marine construction

#75
20110013988
2011-01-20

Assemblage and method for undersea laying of pipeline from a ship spool

#76
20110000794
2011-01-06

Control of a corrosion protection system

#77
20100270169
2010-10-28

Cathodic protection method and apparatus

#78
20090229993
2009-09-17

Treatment process for concrete

#79
20090138148
2009-05-28

Corrosion protection system

#80
20080202941
2008-08-28

Cathodic protection of a concrete structure having a part in contact with a wetting medium and a part above the medium

#81
20080199258
2008-08-21

Retrievable surface installed cathodic protection for marine structures

#82
20080107560
2008-05-08

Alloy for use in galvanic protection

#83
20080105562
2008-05-08

Systems and methods for underwater impressed current cathodic protection

#84
20080047842
2008-02-28

Control for galvanic corrosion inhibiting coupling

#85
20080029401
2008-02-07

Process for Forming Anticorrosive Coating

#86
20070251834
2007-11-01

Automatic potential control cathodic protection system for storage tanks

#87
20070246348
2007-10-25

Stabilizer with cathodic protection

#88
20070085345
2007-04-19

Corrosion protection for wind turbine units in a marine environment

#89
20070029191
2007-02-08

Sacrificial anode holder and related anodes

#90
20070023295
2007-02-01

Apparatus, system and method for extending the life of sacrificial anodes on cathodic protection systems

#91
20060196030
2006-09-07

Plug and pencil for engine

#92
20060065551
2006-03-30

Corrosion tester

#93
20060054072
2006-03-16

Marine vessel corrosion control system

#94
20050284771
2005-12-29

Corrosion protection apparatus and method

#95
20050025608
2005-02-03

Plug and pencil for engine

#96
15617214
2018-06-05

Combination apparatus made of sacrificial anode material removably affixed to a shaft of a propeller of an engine of a water craft, the apparatus including removable and replaceable cutting blades

#97
14674040
2018-02-06

Electrolytic protection system for stern drive marine motors having a cavitation plate

#98
14611370
2017-09-12

Corrosion prevention assembly