Top IPC subclasses
|
1
|
C30B
|
33
|
single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing o
|
|
2
|
H01L
|
17
|
Semiconductor devices; electric solid state devices not otherwise provided for
|
|
3
|
C01G
|
11
|
Compounds containing metals not covered by subclasses C01D or C01F
|
|
4
|
C22C
|
8
|
alloys
|
|
5
|
G01N
|
7
|
Investigating or analysing materials by determining their chemical or physical properties
|
|
6
|
H10N
|
6
|
|
|
7
|
G01R
|
5
|
Measuring electric variables; measuring magnetic variables
|
|
8
|
G01K
|
4
|
measuring temperaturemeasuring quantity of heatthermally-sensitive elements not otherwise provided f
|
|
9
|
H01B
|
3
|
cablesconductorsinsulatorsselection of materials for their conductive, insulating, or dielectric pro
|
|
10
|
C01B
|
2
|
non-metallic elementscompounds thereof
|
|
11
|
B82Y
|
2
|
|
|
12
|
B28D
|
1
|
working stone or stone-like materials
|
|
13
|
G05F
|
1
|
systems for regulating electric or magnetic variables
|