CPC Subgroup
G01R 13/04 for producing permanent records
Full Title
Arrangements for displaying electric variables or waveforms > for producing permanent records
5 direct subcodes
Child Classifications
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- G01R 13/06 Modifications for recording transient disturbances, e.g. by starting or accelerating a recording medium
- G01R 13/08 Electromechanical recording systems using a mechanical direct-writing method
- G01R 13/12 Chemical recording, e.g. clydonographs (G01R13/14 takes precedence)
- G01R 13/14 Recording on a light-sensitive material
- G01R 13/16 Recording on a magnetic medium
Top Applicants
Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 21,460
- ROBERT BOSCH DE 17,801
- SGCC(STATE GRID CORPORATION OF CHINA) 17,347
- SAMSUNG ELECTRONICS COMPANY KR 13,192
- QUALCOMM US 9,900
- HALLIBURTON ENERGY SERVICES GROUP US 9,742
- PHILIPS ELECTRONICS NL 7,249
- MITSUBISHI ELECTRIC CORPORATION JP 6,503
- ZHEJIANG UNIVERSITY 6,414
- DENSO CORPORATION JP 6,382