Classifications

Field	Description	Field Type	XML Source Path	Examples	Multivalued	Indexed	Stored	Required

Field	Description	Field Type	XML Source Path	Examples	Multivalued	Indexed	Stored
patent-document/bibliographic-data/technical-data
icl	IPCR display	string	./classifications-ipcr	Not indexed	x		x
cpcl	CPC display	string	./classifications-cpc	Not indexed	x		x
uscl	US national class display	string	./classification-national/@country=US	Not indexed	x		x
ficl	JP national class display	string	./classification-national/@country=JP	Not indexed	x		x
ic	international classification	alexandria_string		A61K 9/00 becomes: A A61 A61K A61K0009 A61K000900	x	x
xxicl1 - icl5	tokenized international classification**	alexandria_string		icl1:A icl2:A61 icl3:A61K icl4:A61K0009 icl5:A61K000900	x	x
cpc	CP classification	alexandria_string		A61K 9/2893 becomes: A A61 A61K A61K0009 A61K00092893	x	x
xxcpcl1-cpcl5	tokenized CP classification**	alexandria_string		A61K 9/2893 becomes: cpcl1:A cpcl2:A61 cpcl3:A61K cpcl4:A61K0009 cpcl5:A61K00092893	x	x
uc	US classification	alexandria_string		161 161234	x	x
xxucl1-ucl3	tokenized US classification**	alexandria_string		ucl1:161 ucl2:161234	x	x
fi	FI classification	alexandria_string		A63F 5/04 513B becomes: A A63 A63F A63F0005 A63F000504	x	x
xxfil1-fil5	tokenized FI classification**	alexandria_string		A63F 5/04 513B becomes: fil1:A fil2:A63 fil3:A63F fil4:A63F0005 fil5:A63F000504	x	x
fterm	F-Terms	alexandria_string	./fterm-info/fterms	A A61 A61K A61K0001 A61K00010000001	x	x	x
ecla	ECLA classification	alexandria_string	./classification-ecla	A A61 A61K A61K0001 A61K00010000001	x	x	x

**Note: Classification levels for ic, cpc, fi, and ecla are indexed as follows:

l1=section
l2=section+class
l3=section+class+subclass
l4=section+class+subclass+group
l5=section+class+subclass+group+subgroup

Classification levels for uc are indexed as follows:

l1=class
l2=class+subclass (as an integral number)
l3=class+subclass with trailing decimal if exists

Further Reading

For more information about the content of the fields listed, see the XML Content Description for technical-data classification.