Top IPC subclasses
1
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G06K
|
3
|
Recognition of data; presentation of data; record carriers; handling record carriers
|
2
|
H01L
|
1
|
Semiconductor devices; electric solid state devices not otherwise provided for
|
3
|
B42D
|
1
|
booksbook coversloose leavesprinted matter of special format or style not otherwise provided fordevi
|
4
|
G03C
|
1
|
photosensitive materials for photographic purposesphotographic processes, e.g. cine, x-ray, colour,
|