DIFF Subgroup
A61L 29/14 Materials characterised by their function or physical properties
Introduced: January 2000
Full Title
Full titles differ between systems:
IPC:
Materials for catheters or for coating catheters > Materials characterised by their function or physical properties
CPC:
Materials for catheters, or for coating catheters (shape or structure of catheters A61M25/00) > Materials characterised by their function or physical properties
CPC subdivides this area 4x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
IPC defines codes here since 2000.
Child Classifications
Navigate with arrow keys, Enter to open
- A61L 29/16 Biologically active materials, e.g. therapeutic substances since 2000 IPC+CPC Available in IPC and CPC
- A61L 29/18 Materials at least partially X-ray or laser opaque since 2000 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