Hierarchy/Derived subclasses
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uspto searches
Patent Apps in 347/111Granted Patents in 347/111
Use the links above or do an advanced search in ppubs for:
(347/111.ccls. or 347/112.ccls. or 347/113.ccls. or 347/114.ccls. or 347/115.ccls. or 347/116.ccls. or 347/117.ccls. or 347/118.ccls. or 347/119.ccls. or 347/120.ccls. or 347/121.ccls. or 347/122.ccls. or 347/123.ccls. or 347/124.ccls. or 347/125.ccls. or 347/126.ccls. or 347/127.ccls. or 347/128.ccls. or 347/129.ccls. or 347/130.ccls. or 347/131.ccls. or 347/132.ccls. or 347/133.ccls. or 347/134.ccls. or 347/135.ccls. or 347/136.ccls. or 347/137.ccls. or 347/138.ccls. or 347/139.ccls. or 347/140.ccls. or 347/141.ccls. or 347/142.ccls. or 347/143.ccls. or 347/144.ccls. or 347/145.ccls. or 347/146.ccls. or 347/147.ccls. or 347/148.ccls. or 347/149.ccls. or 347/150.ccls. or 347/151.ccls. or 347/152.ccls. or 347/153.ccls. or 347/154.ccls. or 347/155.ccls. or 347/156.ccls. or 347/157.ccls. or 347/158.ccls. or 347/159.ccls. or 347/160.ccls. or 347/161.ccls. or 347/162.ccls. or 347/163.ccls. or 347/164.ccls. or 347/165.ccls. or 347/166.ccls. or 347/167.ccls. or 347/168.ccls. or 347/169.ccls. or 347/170.ccls.)
At about 35 search terms the uspto will give you this error "Too many search terms" The 35th term is bold.
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.