Top IPC subclasses
1
|
H01L
|
10
|
Semiconductor devices; electric solid state devices not otherwise provided for
|
2
|
G01B
|
6
|
measuring length, thickness, or similar linear dimensionsmeasuring anglesmeasuring areasmeasuring ir
|
3
|
G01N
|
3
|
Investigating or analysing materials by determining their chemical or physical properties
|
4
|
A61N
|
1
|
electrotherapymagnetotherapyradiation therapyultrasound therapy
|