Top IPC subclasses
1
|
B82B
|
2
|
nano-structuresmanufacture or treatment thereof
|
2
|
A61K
|
2
|
Preparations for medical, dental, or toilet purposes
|
3
|
C01G
|
2
|
Compounds containing metals not covered by subclasses C01D or C01F
|
4
|
A61P
|
2
|
Specific therapeutic activity of chemical compounds or medicinal preparations
|