Description: 238 / (18) Ties

Hierarchy/Derived subclasses

238 / 18-> 19-> 20
 -> 21
 -> 22
 -> 23
 -> 24
 -> 25
 -> 26
 -> 27-> 28
  -> 29
  -> 30
 -> 31-> 32-> 33-> 34
  -> 35-> 36-> 37
  -> 38
  -> 39
  -> 40
  -> 41
 -> 42-> 43-> 44
   -> 45
  -> 46

CIPO searches

search just 238/18

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((238/18 <IN> CPC) <OR> (238/19 <IN> CPC) <OR> (238/20 <IN> CPC) <OR> (238/21 <IN> CPC) <OR> (238/22 <IN> CPC) <OR> (238/23 <IN> CPC) <OR> (238/24 <IN> CPC) <OR> (238/25 <IN> CPC) <OR> (238/26 <IN> CPC) <OR> (238/27 <IN> CPC) <OR> (238/28 <IN> CPC) <OR> (238/29 <IN> CPC) <OR> (238/30 <IN> CPC) <OR> (238/31 <IN> CPC) <OR> (238/32 <IN> CPC) <OR> (238/33 <IN> CPC) <OR> (238/34 <IN> CPC) <OR> (238/35 <IN> CPC) <OR> (238/36 <IN> CPC) <OR> (238/37 <IN> CPC) <OR> (238/38 <IN> CPC) <OR> (238/39 <IN> CPC) <OR> (238/40 <IN> CPC) <OR> (238/41 <IN> CPC) <OR> (238/42 <IN> CPC) <OR> (238/43 <IN> CPC) <OR> (238/44 <IN> CPC) <OR> (238/45 <IN> CPC) <OR> (238/46 <IN> CPC))

This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.
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