Description: 122 / (109) Fluid Treatment And Handling (127) External Boiler Circuit
Hierarchy/Derived subclasses
CIPO searches
search just 122/127- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((122/127 <IN> CPC) <OR> (122/128 <IN> CPC) <OR> (122/129 <IN> CPC) <OR> (122/130 <IN> CPC) <OR> (122/131 <IN> CPC) <OR> (122/132 <IN> CPC) <OR> (122/133 <IN> CPC) <OR> (122/134 <IN> CPC) <OR> (122/135 <IN> CPC) <OR> (122/136 <IN> CPC) <OR> (122/137 <IN> CPC) <OR> (122/138 <IN> CPC) <OR> (122/139 <IN> CPC) <OR> (122/140 <IN> CPC) <OR> (122/141 <IN> CPC) <OR> (122/142 <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.