CPC Subgroup Additional Only
A61F 2310/00856 Coating or prosthesis-covering structure made of compounds based on metal nitrides
Full Title
Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material > The prosthesis being coated or covered with a particular material > Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds > Coating or prosthesis-covering structure made of compounds based on metal nitrides
9 direct subcodes
Child Classifications
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- A61F 2310/00862 Coating made of boron nitride
- A61F 2310/00868 Coating made of aluminium nitride
- A61F 2310/00874 Coating made of silicon nitride
- A61F 2310/0088 Coating made of titanium nitride
- A61F 2310/00886 Coating made of chromium nitride
- A61F 2310/00892 Coating made of zirconium nitride
- A61F 2310/00898 Coating made of niobium nitride
- A61F 2310/00904 Coating made of hafnium nitride
- A61F 2310/0091 Coating made of tantalum nitride
Top Applicants
Top 10 applicants by patent filingsfor 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