Top IPC subclasses
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1
|
C01G
|
7
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
2
|
C30B
|
6
|
single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing o
|
|
3
|
B82B
|
5
|
nano-structuresmanufacture or treatment thereof
|
|
4
|
C08L
|
4
|
Compositions of macromolecular compounds
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|
5
|
C09K
|
4
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materials for applications not otherwise provided forapplications of materials not otherwise provide
|
|
6
|
C01B
|
1
|
non-metallic elementscompounds thereof
|
|
7
|
C25F
|
1
|
processes for the electrolytic removal of materials from objectsapparatus therefor
|
|
8
|
B23K
|
1
|
soldering or unsolderingweldingcladding or plating by soldering or weldingcutting by applying heat l
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