CPC Subgroup Additional Only
A61L 2300/20 containing or releasing organic materials
Full Title
Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices > containing or releasing organic materials
11 direct subcodes
Child Classifications
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- A61L 2300/202 with halogen atoms, e.g. triclosan, povidone-iodine
- A61L 2300/204 with nitrogen-containing functional groups, e.g. aminoxides, nitriles, guanidines
- A61L 2300/21 Acids
- A61L 2300/216 with other specific functional groups, e.g. aldehydes, ketones, phenols, quaternary phosphonium groups
- A61L 2300/22 Lipids, fatty acids, e.g. prostaglandins, oils, fats, waxes
- A61L 2300/224 containing metals, e.g. porphyrins, vitamin B12
- A61L 2300/23 Carbohydrates
- A61L 2300/25 Peptides having up to 20 amino acids in a defined sequence
- A61L 2300/252 Polypeptides, proteins, e.g. glycoproteins, lipoproteins, cytokines
- A61L 2300/258 Genetic materials, DNA, RNA, genes, vectors, e.g. plasmids
- A61L 2300/30 Compounds of undetermined constitution extracted from natural sources, e.g. Aloe Vera
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