ClassID:

216704

H02H3/22 - CPC Classification

Classification description:

Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage of short duration, e.g. lightning

Recent Application in this class:
#1
20250385509
2025-12-18

Wireless Communication System for Electrically Powered Railbound Vehicles

#2
20250384169
2025-12-18

REAL-TIME OVERVOLTAGE MONITORING TO PREVENT UNAUTHORIZED ACCESS VIA TIMING FAULT EXPLOITATION

#3
20250246897
2025-07-31

DEVICES FOR ACTIVE OVERVOLTAGE PROTECTION INCLUDING VARISTORS AND THYRISTORS

#4
20240364093
2024-10-31

DEVICE AND METHOD FOR DISCONNECTING A HIGH-VOLTAGE DIRECT ELECTRIC CURRENT WITH A FUSE, AND OSCILLATING-CURRENT OVERLOAD SYSTEM

#5
20240313526
2024-09-19

Apparatus for detection of electrical disturbances resulting from electromagnetic pulse and solar storm

#6
20240162701
2024-05-16

SURGE PROTECTIVE DEVICE AND METHOD, AND AN ELECTRIC SYSTEM WITH SAID PROTECTIVE DEVICE

#7
20240120728
2024-04-11

Devices for active overvoltage protection including varistors and thyristors

#8
20240006871
2024-01-04

Metrology device including a high-voltage protection module

#9
20230396053
2023-12-07

Surge protective devices, circuits, modules and systems including same

#10
20230147803
2023-05-11

Method and systems for protection of multiport multimode power over ethernet devices from electromagnetic energy disturbance

#11
20230146002
2023-05-11

POWER SUPPLY CIRCUIT AND SEMICONDUCTOR DEVICE

#12
20230122603
2023-04-20

Surge protector

#13
20230108660
2023-04-06

Apparatus for detection of electrical disturbances resulting from electromagnetic pulse and solar storm

#14
20220407309
2022-12-22

Power supply with lightning protection

#15
20220399714
2022-12-15

Devices for active overvoltage protection including varistors and thyristors

#16
20220368123
2022-11-17

Disconnector device and overvoltage protection assembly including the same

#17
20220285928
2022-09-08

ELECTROSTATIC PROTECTION CIRCUITS AND FULL-CHIP ELECTROSTATIC PROTECTION CIRCUITS

#18
20220224108
2022-07-14

Method and systems for suppressing electromagnetic pulse induced surges using combined multiport protection with impedance matching and low insertion loss

#19
20220190589
2022-06-16

Sensor-based remote condition monitoring device and method for disconnector devices

#20
20220132644
2022-04-28

Lighting relay panel features for improved safety and reliability

#21
20220069564
2022-03-03

Metrology device including a high-voltage protection module

#22
20220021204
2022-01-20

Surge protection circuit, lightning protector and electronic device

#23
20220006287
2022-01-06

Power management system for maintaining bus voltage

#24
20210358702
2021-11-18

Direct-current circuit breaker

#25
20210336435
2021-10-28

T-type DC circuit breaker and method for controlling the same

#26
20210305808
2021-09-30

Method and systems for detection and protection from electromagnetic pulse events using hardware implemented artificial intelligence

#27
20210296863
2021-09-23

Gas arrester

#28
20210119437
2021-04-22

Electronic apparatus

#29
20210119436
2021-04-22

Electrical device with power quality event protection and associated method

#30
20210104372
2021-04-08

Three phase surge protection device

#31
20210083468
2021-03-18

Temporary overvoltage and ground fault overvoltage protection based on arrester current measurement and analysis

#32
20210066914
2021-03-04

Method and system for transferring a load in a thunder and lightning weather

#33
20210066906
2021-03-04

Switchgear arrestor system with isolators

#34
20210044105
2021-02-11

Overvoltage protection circuit

#35
20210021117
2021-01-21

Power supply with current limit on individual conductors

#36
20210018554
2021-01-21

Transformer assembly with medium frequency transformers

#37
20200403402
2020-12-24

Overvoltage protective device for lightning protection

#38
20200389010
2020-12-10

System and method for autonomous monitoring and active defense of lightning

#39
20200366088
2020-11-19

Crowbar device and multistage crowbar apparatus

#40
20200366087
2020-11-19

Surge protection device for the protection of multiple DC or AC power lines

#41
20200343713
2020-10-29

Disconnector device and overvoltage protection assembly including the same

#42
20200321327
2020-10-08

Transient voltage suppression device with thermal cutoff

#43
20200313419
2020-10-01

Method and apparatus for operating a power distribution system

#44
20200235572
2020-07-23

Surge protection device

#45
20200212672
2020-07-02

Protection circuit with bidirectional surge protection

#46
20200194993
2020-06-18

Systems and methods for lightning protection in power distribution modules

#47
20200137855
2020-04-30

Lighting relay panel features for improved safety and reliability

#48
20200128650
2020-04-23

Lighting relay panel features for improved safety and reliability

#49
20200036182
2020-01-30

Fast over voltage and surge detection for high speed and load switches

#50
20200017195
2020-01-16

Propeller blade angle feedback arrangement and method

#51
20200014191
2020-01-09

Devices for active overvoltage protection

#52
20200011515
2020-01-09

Lightning protection system and method

#53
20190379203
2019-12-12

Power sourcing equipment and power over ethernet system

#54
20190372332
2019-12-05

Surge protection device

#55
20190237989
2019-08-01

Switching mode front end surge protection circuit

#56
20190237964
2019-08-01

Surge protective device with abnormal overvoltage protection

#57
20190199067
2019-06-27

Gas arrester

#58
20190165571
2019-05-30

Power supply clamp for electrostatic discharge (ESD) protection having a circuit for controlling clamp time out behavior

#59
20190157855
2019-05-23

Dual mode phase-to-phase surge protective devices

#60
20190123544
2019-04-25

Method and apparatus for adaptive AC/DC surge protection

#61
20190036326
2019-01-31

Protection of electrical devices based on electromagnetic pulse signal

#62
20190036325
2019-01-31

Electromagnetic load drive device and in-vehicle control system

#63
20180346145
2018-12-06

Jet stream lightning protection apparatus, system, and method the same

#64
20180323604
2018-11-08

Ground/voltage open input

#65
20180269678
2018-09-20

Surge protective device with abnormal overvoltage protection

#66
20180261995
2018-09-13

Electrical device with power quality event protection and associated method

#67
20180183230
2018-06-28

Devices for active overvoltage protection

#68
20170358918
2017-12-14

Apparatus with load dump protection

#69
20170288386
2017-10-05

Power supply with current limit on individual conductors

#70
20170256933
2017-09-07

ESD protection circuit and method with high immunity to hot plug insertion and other transient events

#71
20170227378
2017-08-10

Sensor device

#72
20170125997
2017-05-04

Side-ejection surge absorber module

#73
20170117700
2017-04-27

Surge protective device and surge protective system

#74
20170040793
2017-02-09

Extended drain non-planar MOSFETs for electrostatic discharge (ESD) protection

#75
20160359316
2016-12-08

Power supply device and high potential test method thereof

#76
20160322813
2016-11-03

Electrostatic discharge protection device with power management

#77
20160322812
2016-11-03

Electrostatic discharge protection device with power management

#78
20160322807
2016-11-03

Built-in test circuits for transient voltage protection devices

#79
20160261106
2016-09-08

Monitoring device and surge arrester system

#80
20160254660
2016-09-01

Overvoltage notching of electrical swells

#81
20160197468
2016-07-07

Surge protective devices

#82
20160197465
2016-07-07

System for improving lightning immunity for a solid state power controller

#83
20160172840
2016-06-16

Electrical device with power quality event protection and associated method

#84
20160164274
2016-06-09

Overvoltage notching of electricity delivered to an electrical load

#85
20160134099
2016-05-12

Voltage transient protection circuitry

#86
20160133360
2016-05-12

Insulating cover for transformer brackets

#87
20160098055
2016-04-07

Universal opto-coupled voltage system

#88
20160079749
2016-03-17

APPARATUS FOR BLOCKING HIGH VOLTAGE SOURCE, PLUG APPLIED FOR THE SAME, AND METHOD FOR CONTROLLING THE SAME

#89
20160064924
2016-03-03

System and method for isolating and protecting a PoE (power over ethernet) device

#90
20160064922
2016-03-03

Surge reduction filter

#91
20160061881
2016-03-03

Smart junction box for photovoltaic systems

#92
20160020605
2016-01-21

Surge reduction filter

#93
20150372477
2015-12-24

Apparatus for transmitting power and control method thereof

#94
20150372472
2015-12-24

Disconnection indicator of an active component of a device for protecting an electrical installation

#95
20150349515
2015-12-03

Electrically insulated tethers for transmission line arresters

#96
20150326007
2015-11-12

Extended drain non-planar MOSFETs for electrostatic discharge (ESD) protection

#97
20150326006
2015-11-12

Protection circuit of communication interface

#98
20150311693
2015-10-29

Device for limiting disturbances of an electrical nature

#99
20150303678
2015-10-22

Precision surge clamp with constant clamping voltage and near-zero dynamic resistance under various thermal, power and current levels

#100
20150270258
2015-09-24

Optimized ESD clamp circuitry

#101
20150255930
2015-09-10

INTERFACES WITH BUILT-IN TRANSIENT VOLTAGE SUPPRESSION

#102
20150222112
2015-08-06

WIRELESS-COMMUNICATION ENABLED SURGE PROTECTOR FOR DISTRIBUTED SYSTEMS

#103
20150214700
2015-07-30

AC CIRCUIT BREAKER PANELS AND TELECOMMUNICATIONS EQUIPMENT CABINETS HAVING AC CIRCUIT BREAKER PANELS

#104
20150194802
2015-07-09

Surge protection for differential input/output interfaces

#105
20150171619
2015-06-18

Transmission bandwidth extender/category 6 surge protector

#106
20140313628
2014-10-23

HVDC hybrid circuit breaker with snubber circuit

#107
20140259974
2014-09-18

Air conditioning flashing hood

#108
20140198415
2014-07-17

Electrostatic discharge protection apparatus

#109
20140175877
2014-06-26

Building Power Management System

#110
20140153146
2014-06-05

Connection apparatus circuit and high voltage surge protection method thereof

#111
20140139966
2014-05-22

Electrode arrangement for an electrical component

#112
20140092506
2014-04-03

Extended drain non-planar MOSFETs for electrostatic discharge (ESD) protection

#113
20130279054
2013-10-24

Overvoltage protection method using exposed device supply rail

#114
20130222965
2013-08-29

Arrester

#115
20130222961
2013-08-29

Apparatus and method for electronic circuit protection

#116
20130135777
2013-05-30

Surge protection circuit

#117
20130050879
2013-02-28

High efficiency bridgeless PFC converter and method

#118
20130010396
2013-01-10

Voltage transient protection circuitry

#119
20120320481
2012-12-20

Protection System

#120
20120287548
2012-11-15

SURGE PROTECTOR

#121
20120154971
2012-06-21

Programmable Lightning Detector

#122
20120154961
2012-06-21

Electrostatic discharge blocking circuits

#123
20120153928
2012-06-21

Power controller system

#124
20120134063
2012-05-31

Relocatable power tap with surge protector

#125
20120113558
2012-05-10

Actuation and protection utilizing active material activation during lightning strikes and similar events

#126
20120002337
2012-01-05

Apparatus and method for electronic circuit protection

#127
20110279942
2011-11-17

Surge current sensor and surge protection system including the same

#128
20110254962
2011-10-20

Controlling apparatus and controlling method for signal outputing circuit and video system

#129
20110149444
2011-06-23

Surge protection circuit

#130
20110075305
2011-03-31

Two-level lightning protection circuit

#131
20100053831
2010-03-04

WIDEBAND OVERVOLTAGE PROTECTION CIRCUIT

#132
20090303646
2009-12-10

Controlling appratus and controlling method for signal outputing circuit and video system

#133
20090002909
2009-01-01

Systems and Methods for Isolating Power Surges

#134
20080019071
2008-01-24

Surge suppression module with disconnect

#135
20070002512
2007-01-04

Circuit arrangement for overvoltage detection and method for operating circuit arrangement

#136
20060139835
2006-06-29

Device for protection from thunder

#137
20050111158
2005-05-26

Surge protection for electronic animal containment system

#138
20050099753
2005-05-12

Power supply protector for supressing transient voltage

#139
20050041355
2005-02-24

Monitoring and response system

#140
17706041
2022-10-11

Method and systems for electromagnetic protection with persistent self monitoring and cybersecure local and remote status report

#141
15598900
2020-03-10

Monitor circuit

#142
15158541
2018-10-30

EOS event detection circuit for detecting EOS event on supply voltage rail coupled to power supply

#143
13459621
2015-08-04

Self ESD protected device and method thereof