DIFF Subgroup
A61C 5/40 Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
Introduced: January 2017
Full Title
Filling or capping teeth > Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
IPC defines codes here since 2017.
Child Classifications
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- A61C 5/42 Files for root canals; Handgrips or guiding means therefor since 2017 IPC+CPC Available in IPC and CPC
- A61C 5/44 Means for controlling working depth, e.g. supports or boxes with depth-gauging means, stop positioners or files with adjustably-mounted handles since 2017 IPC+CPC Available in IPC and CPC
- A61C 5/46 Nerve extractors, e.g. needles; Means for removing broken parts of endodontic instruments since 2017 IPC+CPC Available in IPC and CPC
- A61C 5/48 Means for preventing loss of endodontic instruments during treatment since 2017 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