Top IPC subclasses
1
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B82B
|
2
|
nano-structuresmanufacture or treatment thereof
|
2
|
C01G
|
2
|
Compounds containing metals not covered by subclasses C01D or C01F
|
3
|
H01S
|
1
|
devices using stimulated emission
|
4
|
C01B
|
1
|
non-metallic elementscompounds thereof
|
5
|
C30B
|
1
|
single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing o
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