Top IPC subclasses
1
|
C03B
|
2
|
manufacture, shaping, or supplementary processes
|
2
|
F24H
|
2
|
fluid heaters, e.g. water or air heaters, having heat-generating means, in general
|
3
|
A61K
|
1
|
Preparations for medical, dental, or toilet purposes
|
4
|
A61P
|
1
|
Specific therapeutic activity of chemical compounds or medicinal preparations
|