ipc

Element Title: International Patent Classification (IPC)

Element Description: The primary or secondary international patent classification.

Element Content:

(#PCDATA)

Element is Located in:

classification-ipc-primary, classification-ipc-secondary

Element Attributes:

Name	Type	Default Value	Example	Description
st32-name	CDATA	"B511, B512, B581" (fixed)	In DTD for reference only	Data mapping to Grant Red Book/ST32
inid-code	CDATA			INID code displayed on the photocomposed page

Element Markup Instructions: The international patent classification is formatted as AnnAnnn/nn...n where:

    - Position 1 is the classification section (alphabetic)
    - Position 2-3 are the classification class (2 numeric right justified with leading zero)
    - Position 4 is the classification subclass (1 alphabetic)
    - Position 5-7 are the classification group (3 numeric right justified with leading zeros)
    - Position 8 is a separator (/)
    - Position 9-15 are is the classification subgroup (up to 7 alphanumeric characters left justified)

Element Example:

<ipc>B08B003/00</ipc>
<ipc>D21C011/12</ipc>
<ipc>E04G001/20</ipc>