CPC Subgroup
A61L 2/23 Solid materials, e.g. granules, powders, blocks or tablets
Full Title
Disinfection or sterilisation of materials or objects, in general; Accessories therefor > using chemical substances > Solid materials, e.g. granules, powders, blocks or tablets
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- A61L 2/232 layered or coated
- A61L 2/235 cellular, porous or foamed
- A61L 2/238 Metals or alloys, e.g. oligodynamic metals
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