ClassID:

120672

C23F13/20 - CPC Classification

Classification description:

Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions; Constructional parts, or assemblies of cathodic-protection apparatus; Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto Conducting electric current to electrodes

Recent Application in this class:
#1
20250270708
2025-08-28

PROTECTION SYSTEM FOR PIPELINES

#2
20250043432
2025-02-06

MONITORING DEVICE FOR A CATHODIC PROTECTION SYSTEM AND CATHODIC PROTECTION SYSTEM

#3
20240287684
2024-08-29

GRAVITY-CONTACT SACRIFICIAL ANODE

#4
20240209515
2024-06-27

CATHODIC CORROSION PROTECTION

#5
20240183039
2024-06-06

DEVICE FOR THE CATHODIC PROTECTION OF METAL COMPONENTS OF BOATS

#6
20240117500
2024-04-11

ANTICORROTION SYSTEM

#7
20240093381
2024-03-21

METHOD AND APPARATUS FOR CATHODIC PROTECTION OF STEEL IN A CONCRETE STRUCTURE LOCATED IN AN IONICALLY CONDUCTIVE LIQUID

#8
20240068110
2024-02-29

CATHODIC PROTECTION OF CONCRETE USING AN ANODE ATTACHED TO AN OUTER SURFACE.

#9
20240052500
2024-02-15

Cathodic protection of metal substrates

#10
20230227993
2023-07-20

Photoanode film for the photocathode protection and the durability improvement of a reinforcing bar in concretes, the preparation method thereof and a method of using the photoanode film for the photocathode protection and the durability improvement of a reinforcing bar in concretes

#11
20230193480
2023-06-22

Cathodic protection system and method

#12
20220380907
2022-12-01

PROPELLER ARRANGEMENT IN A CATHODIC PROTECTION SYSTEM

#13
20220026079
2022-01-27

WATER HEATER LIFE EXTENDER

#14
20210340679
2021-11-04

SYSTEMS AND METHODS FOR MONITORING INTEGRATED PASSIVE ANODES

#15
20210292916
2021-09-23

Cathodic Corrosion Protection with Current Limiter

#16
20200308712
2020-10-01

Cathodic corrosion protection with current limiter

#17
20200248319
2020-08-06

Integrated Impressed Current Cathodic Protection for Wet Crude Handling Vessels

#18
20200216966
2020-07-09

Cathodic protection of metal substrates

#19
20200109478
2020-04-09

System for impressed current cathodic protection

#20
20200095691
2020-03-26

Cathodic Corrosion Protection

#21
20200095690
2020-03-26

Expandable anode assembly

#22
20200087799
2020-03-19

ARRANGEMENT FOR ANTI-FOULING OF A PROTECTED SURFACE

#23
20200048778
2020-02-13

Anode assembly with reduced attenuation properties for cathodic protection systems

#24
20190352872
2019-11-21

Load arrangement for powering a load

#25
20190279945
2019-09-12

ELECTRONIC CIRCUIT WITH GUARD FEATURES FOR RELIABILITY IN HUMID ENVIRONMENTS

#26
20190203977
2019-07-04

Method and system for monitoring powered anode drive level

#27
20190113160
2019-04-18

Flange tab system

#28
20190093237
2019-03-28

Manufacture of sacrificial anodes

#29
20190071842
2019-03-07

Hydraulic excavation and delivery device

#30
20190071782
2019-03-07

Cathodic corrosion protection with solar panel

#31
20190062927
2019-02-28

Manufacture of sacrificial anodes

#32
20190010615
2019-01-10

Cathodic corrosion protection system with rebar mounting assembly

#33
20190010614
2019-01-10

Cathodic corrosion protection with current limiter

#34
20180187314
2018-07-05

CATHODIC PROTECTION OF METAL SUBSTRATES

#35
20180175533
2018-06-21

Connector and communications terminal

#36
20180066368
2018-03-08

Marine utility cast iron anode

#37
20170342572
2017-11-30

Anode assembly with reduced attenuation properties for cathodic protection systems

#38
20170121828
2017-05-04

Cathodic corrosion protection

#39
20170029961
2017-02-02

CATHODIC PROTECTION OF COPPER PLUMBING SYSTEM FOR PREVENTION OF CORROSION

#40
20160289846
2016-10-06

Method and apparatus for corrosion inhibition

#41
20160289840
2016-10-06

Method of forming wiring pattern and etching apparatus for forming wiring pattern

#42
20160237575
2016-08-18

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

#43
20160160360
2016-06-09

Preventing corrosion of an electrical connector

#44
20160153096
2016-06-02

Fastening sacrificial anodes to reinforcing bars in concrete for cathodic protection

#45
20160145748
2016-05-26

HIGH SPEED SEQUENTIAL CATHODIC PROTECTION SYSTEMS AND METHODS

#46
20160138173
2016-05-19

Marine cathodic protection system

#47
20160057810
2016-02-25

Electrochemical descaling by pulsed signal reversal

#48
20150368810
2015-12-24

Anode assembly with reduced attenuation properties for cathodic protection systems

#49
20150329974
2015-11-19

System, apparatus, and method for utilization of bracelet galvanic anodes to protect subterranean well casing sections shielded by cement at a cellar area

#50
20150299868
2015-10-22

Corrosion protection using a sacrificial anode

#51
20150259807
2015-09-17

Detachable retrievable outboard system and apparatus for sacrificial anodes

#52
20150211128
2015-07-30

SACRIFICIAL ANODE AND TREATMENT OF CONCRETE

#53
20150184788
2015-07-02

Pipeline and methods

#54
20150180145
2015-06-25

Electrical connector for an anode

#55
20150159282
2015-06-11

Galvanic anode and method of corrosion protection

#56
20140318984
2014-10-30

Systems and methods for impressed current cathodic protection

#57
20140262824
2014-09-18

CORROSION PROTECTION SYSTEM FOR NON-IMMERSED EQUIPMENT

#58
20140251680
2014-09-11

Cathodic protection system for multiple structures using shunt modules

#59
20140124360
2014-05-08

CORROSION CONTROL OF ELECTRICAL CABLES USED IN CATHODIC PROTECTION

#60
20140021063
2014-01-23

Two stage cathodic protection system using impressed current and galvanic action

#61
20140021062
2014-01-23

Charging a sacrificial anode with ions of the sacrificial material

#62
20130233725
2013-09-12

METHOD FOR PROTECTING ELECTRICAL POLES AND GALVANIZED ANCHORS FROM GALVANIC CORROSION

#63
20130228471
2013-09-05

Adaptive active cathodic protection

#64
20130081955
2013-04-04

System, apparatus, and method for utilization of bracelet galvanic anodes to protect subterranean well casing sections shielded by cement at a cellar area

#65
20120298525
2012-11-29

Method for protecting electrical poles and galvanized anchors from galvanic corrosion

#66
20120261270
2012-10-18

Sacrificial anode and treatment of concrete

#67
20120152732
2012-06-21

Discrete galvanic anode

#68
20120073961
2012-03-29

Electric corrosion preventing structure of marine vessel propelling machine

#69
20120031751
2012-02-09

Multipurpose segmented titanium mixed metal oxide (MMO) coated anode with integrated vent

#70
20120031750
2012-02-09

Multipurpose segmented sacrificial anode

#71
20120018312
2012-01-26

Corrosion Protection Method And Corrosion Protection Structure

#72
20110308967
2011-12-22

Pump Cavitation Device

#73
20110296674
2011-12-08

RESISTOR ANODE ASSEMBLY

#74
20110177358
2011-07-21

Protective coating for metal surfaces

#75
20090188787
2009-07-30

Sacrificial anode with resistor assembly for metal tank corrosion protection

#76
20090179025
2009-07-16

Resistor anode assembly

#77
20090145748
2009-06-11

Cathodic protection apparatus and method

#78
20090127132
2009-05-21

Corrosion control method and apparatus for reinforcing steel in concrete structures

#79
20090032410
2009-02-05

Electrical connection to impressed current anode in concrete construction

#80
20080190919
2008-08-14

Water heater anode and mounting fixture

#81
20080073223
2008-03-27

Protection of reinforcing steel

#82
20070246348
2007-10-25

Stabilizer with cathodic protection

#83
20060213768
2006-09-28

Electrode for a cathodic protection device

#84
20050284771
2005-12-29

Corrosion protection apparatus and method

#85
20050241934
2005-11-03

Self-repairing structure and coating for corrosive medium

#86
20050224247
2005-10-13

Cathodic lead insulator

#87
20050168208
2005-08-04

System and method for measuring electric current in a pipeline

#88
17024504
2024-04-09

Anode mounting head for heater treaters and other devices

#89
16910249
2023-07-25

Push fit anode plug and holder for sacrificial anodes

#90
16137698
2019-11-05

Cathodic debonding prevention method and apparatus

#91
14793665
2016-07-05

Multi use cathodic protection system for steel and reinforced concrete and method of use

#92
14611370
2017-09-12

Corrosion prevention assembly