Utility
Subclass
Subgroup
Patent
A01C
7/201
12167707
A61K
31/5365
12168013
B01D
46/4227
12168193
F03D
3/062
12168971
F17C
1/06
12169046
G01N
35/1002
12169207
G05D
1/0229
12169409