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IPC Subgroup
A61C 5/4

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

Classification Context

Section:
HUMAN NECESSITIES
Class:
MEDICAL OR VETERINARY SCIENCE; HYGIENE
Subclass:
DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE

4 direct subcodes

Child Classifications

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  • A61C 5/42 Files for root canals; Handgrips or guiding means therefor
  • 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
  • A61C 5/46 Nerve extractors, e.g. needles; Means for removing broken parts of endodontic instruments
  • A61C 5/48 Means for preventing loss of endodontic instruments during treatment

Top Applicants

Top 10 applicants by patent filingsfor class A61, 2013–2023, worldwide · Source: EPO PATSTAT

  1. PHILIPS ELECTRONICS NL 18,523
  2. NOVARTIS CH 14,253
  3. COVIDIEN US 13,953
  4. ROCHE CH 12,005
  5. CHINESE ACADEMY OF SCIENCES 11,955
  6. UNIVERSITY OF CALIFORNIA US 11,692
  7. HARVARD UNIVERSITY US 11,596
  8. L'OREAL FR 11,593
  9. P&G (PROCTER & GAMBLE COMPANY) US 11,297
  10. OLYMPUS CORPORATION JP 9,594