USPC Class Details

Description: 122 liquid heaters and vaporizers / 122 liquid heaters and vaporizers/(6r) industrial (7r) waste heat

Hierarchy/Derived subclasses

122 / 6r-> 7r-> 7a
  -> 7b
  -> 7c
  -> 7d

uspto searches

Patent Apps in 122/7r

Granted Patents in 122/7r

Use the links above or do an advanced search in ppubs for:
(122/7r.ccls. or 122/7a.ccls. or 122/7b.ccls. or 122/7c.ccls. or 122/7d.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
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