Hierarchy/Derived subclasses
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uspto searches
Patent Apps in 368/276Granted Patents in 368/276
Use the links above or do an advanced search in ppubs for:
(368/276.ccls. or 368/277.ccls. or 368/278.ccls. or 368/279.ccls. or 368/280.ccls. or 368/281.ccls. or 368/282.ccls. or 368/283.ccls. or 368/284.ccls. or 368/285.ccls. or 368/286.ccls. or 368/287.ccls. or 368/288.ccls. or 368/289.ccls. or 368/290.ccls. or 368/291.ccls. or 368/292.ccls. or 368/293.ccls. or 368/294.ccls. or 368/295.ccls. or 368/296.ccls. or 368/297.ccls. or 368/298.ccls. or 368/299.ccls. or 368/300.ccls. or 368/301.ccls. or 368/302.ccls. or 368/303.ccls. or 368/304.ccls. or 368/305.ccls. or 368/306.ccls. or 368/307.ccls. or 368/308.ccls. or 368/309.ccls. or 368/310.ccls. or 368/311.ccls. or 368/312.ccls. or 368/313.ccls. or 368/314.ccls. or 368/315.ccls. or 368/316.ccls. or 368/317.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.