A61B 5/022 by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
Introduced: January 1990
Title
Titles differ between systems:
IPC: by applying pressure to close blood vessels, e.g. against the skin; Ophthaldynamometers
CPC: by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
Full Title
Full titles differ between systems:
Measuring for diagnostic purposes; Identification of persons > Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow > Measuring pressure in heart or blood vessels > by applying pressure to close blood vessels, e.g. against the skin; Ophthaldynamometers
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 evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow > Measuring pressure in heart or blood vessels > by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
CPC subdivides this area 2x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
IPC defines codes here since 1990.
Child Classifications
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- A61B 5/0225 the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds since 1990 +1 CPC IPC+CPC Available in IPC and CPC
- A61B 5/023 the pressure transducers comprising a liquid column since 1990 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class A61,2013–2023, worldwide · Source: EPO PATSTAT
- PHILIPS ELECTRONICS NL 18,523
- NOVARTIS CH 14,253
- COVIDIEN US 13,953
- ROCHE CH 12,005
- CHINESE ACADEMY OF SCIENCES 11,955
- UNIVERSITY OF CALIFORNIA US 11,692
- HARVARD UNIVERSITY US 11,596
- L'OREAL FR 11,593
- P&G (PROCTER & GAMBLE COMPANY) US 11,297
- OLYMPUS CORPORATION JP 9,594
Top Applicants (CPC)
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