A61K - Cooperative Patent Classification

CPC - A61K - 2013.07 - page 56
NOTE
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a peptide, protein, polyamino acid being classified in A61K 47/48238 and
subgroupes; an antibody in A61K 47/48369 and subgroupes. In case of block
copolymers, the different (large) blocks are classified in the appropriate A61K
47/48169 or A61K 47/48238 subgroups
A61K 47/48176 . . . { the organic macromolecular compound has been obtained by reactions only
involving carbon-to-carbon unsaturated bonds, e.g. poly(meth)acrylate,
polyacrylamide, polystyrene, polyvinylpyrrolidone, polyvinylalcohol }
A61K 47/48184 . . . . { the macromolecular compound obtained by reactions only involving
carbon-to-carbon unsaturated bonds being an ion exchange resin, e.g.
polystyrene sulfonic acid resin }
A61K 47/48192 . . . { the organic macromolecular compound has been obtained otherwise than by
reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas,
polyurethanes }
A61K 47/482 . . . . { the macromolecule is/contains a polyester, e.g. PLGA,
polylactide-co-glycolide }
A61K 47/48207 . . . . { the macromolecule is/contains a polyamide, e.g. nylon ( polyamino acids
A61K 47/48238 ) }
A61K 47/48215 . . . . { the organic macromolecular compound being a polyoxyalkylene oligomer,
polymer, dendrimer, e.g. PEG, PPG, PEO, polyglycerol }
A61K 47/48223 . . . . { the macromolecule contains phosphorus in the main chain, e.g.
poly-phosphazene }
A61K 47/4823 . . . { the organic macromolecular compound being a polysaccharide or a derivative,
e.g. starch, chitosan, chitin, cellulose, pectin, cyclodextrin with the
pharmacologically active agent being covalently linked to the external surface of
the ring structure, a bacterial polysaccharide or oligosaccharide antigen, a
glycosaminoglycan }
NOTE
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if cyclodextrin being used to complex the drug, then the appropriate
classification being A61K 47/48969 ; proteoglycans as modifying agents
attached to the pharmacologically or therapeutically active agent are
classified in the appropriate A61K 47/48238 subgroup
A61K 47/48238 . . { the modifying agent being a protein, peptide, polyamino acid }
NOTE
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antibodies or immunoglobulins are classified in A61K 47/48369 subgroupes
Special physical or galenic forms modified by covalent attachment or
complexation of a protein, peptide or polyamino acid, are given the A61K
47/48238 class in addition to their corresponding A61K 47/48769 subgroup,
e.g. a liposome modified on its surface by a peptide being classified in A61K
47/48815 and A61K 47/48238 , a PLGA nanoparticle modified on its surface
by a peptide being classified in A61K 47/48915 and in A61K 47/48238
Peptidic linkers used to connect a drug and a modifying agent are classified
in A61K 47/48338 , the modifying agent being also classified if it being
defined
A61K 47/48246 . . . { drug-peptide, protein or polyamino acid conjugates, i.e. the modifying agent
being a protein, peptide, polyamino acid which being linked/complexed to a
molecule that being the pharmacologically or therapeutically active agent } (