Top IPC subclasses
1
|
A61P
|
5
|
Specific therapeutic activity of chemical compounds or medicinal preparations
|
2
|
A61K
|
3
|
Preparations for medical, dental, or toilet purposes
|
3
|
F03D
|
2
|
Wind motors
|
4
|
F22B
|
1
|
methods of steam generationsteam boilers
|
5
|
F04B
|
1
|
positive-displacement machines for liquidspumps
|