A61M 16/22 Carbon dioxide-absorbing devices (cartridges with absorbing substances for respiratory apparatus A62B19/00)
Introduced: January 1985
Title
Titles differ between systems:
IPC: Carbon dioxide-absorbing devices
CPC: Carbon dioxide-absorbing devices (cartridges with absorbing substances for respiratory apparatus A62B19/00)
Full Title
Full titles differ between systems:
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes > Carbon dioxide-absorbing devices
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators (iron lungs A61H31/02); Tracheal tubes > Carbon dioxide-absorbing devices (cartridges with absorbing substances for respiratory apparatus A62B19/00)
No child classifications to compare. This is a leaf node in both 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