Description: 122 / (36) Boilers And Water Heaters (47) Water Tube Boilers

Hierarchy/Derived subclasses

122 / 36-> 47-> 48-> 49-> 50-> 51
     -> 52
     -> 53
    -> 54
   -> 55-> 56
    -> 57-> 58
    -> 59
    -> 60-> 61
   -> 62
  -> 63-> 64-> 65-> 66

CIPO searches

search just 122/47

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((122/47 <IN> CPC) <OR> (122/48 <IN> CPC) <OR> (122/49 <IN> CPC) <OR> (122/50 <IN> CPC) <OR> (122/51 <IN> CPC) <OR> (122/52 <IN> CPC) <OR> (122/53 <IN> CPC) <OR> (122/54 <IN> CPC) <OR> (122/55 <IN> CPC) <OR> (122/56 <IN> CPC) <OR> (122/57 <IN> CPC) <OR> (122/58 <IN> CPC) <OR> (122/59 <IN> CPC) <OR> (122/60 <IN> CPC) <OR> (122/61 <IN> CPC) <OR> (122/62 <IN> CPC) <OR> (122/63 <IN> CPC) <OR> (122/64 <IN> CPC) <OR> (122/65 <IN> CPC) <OR> (122/66 <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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