H04M2201/80 - CPC Classification Index

ClassID:

228090 ⎘

H04M2201/80 - CPC Classification

Classification description:

Electronic components, circuits, software, systems or apparatus used in telephone systems line protection circuits such as current or overvoltage protection circuits

Recent Application in this class:

20180241203

2018-08-23

Over-current protection apparatus and method

20180103142

2018-04-12

Image forming apparatus to which noise counter-measure is applied

20170353590

2017-12-07

Method and Device for Grounding Adjustment

20170019526

2017-01-19

Protection of a telephone line against overvoltages

20160330334

2016-11-10

Method and apparatus for use in supplying power over a telephone line

20130070383

2013-03-21

Solid state protector module

20120069990

2012-03-22

Shared protection scheme for multiple variable batteries

20050099755

2005-05-12

Broadband surge protector with non-resetting current limiter

20050073793

2005-04-07

Dual stage current limiting surge protector system