CPC Subgroup
A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
Full Title
Measuring for diagnostic purposes (radiation diagnosis A61B6/00; diagnosis by ultrasonic, sonic or infrasonic waves A61B8/00); Identification of persons > Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves (measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24) > Measuring electrical impedance or conductance of a portion of the body
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- A61B 5/0531 Measuring skin impedance
- A61B 5/0534 for testing vitality of teeth
- A61B 5/0535 Impedance plethysmography (for measuring blood flow A61B5/0295)
- A61B 5/0536 Impedance imaging, e.g. by tomography
- A61B 5/0537 Measuring body composition by impedance, e.g. tissue hydration or fat content
- A61B 5/0538 invasively, e.g. using a catheter
Top Applicants
Top 10 applicants by patent filingsfor class A61, 2013–2023, worldwide · Source: EPO PATSTAT
- PHILIPS ELECTRONICS NL 20,621
- NOVARTIS CH 15,792
- ROCHE CH 14,303
- COVIDIEN US 13,862
- HARVARD UNIVERSITY US 13,454
- UNIVERSITY OF CALIFORNIA US 12,798
- P&G (PROCTER & GAMBLE COMPANY) US 12,140
- L'OREAL FR 11,800
- OLYMPUS CORPORATION JP 9,894
- BOSTON SCIENTIFIC SCIMED US 9,513