Hierarchy/Derived subclasses
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uspto searches
Patent Apps in 342/385Granted Patents in 342/385
Use the links above or do an advanced search in ppubs for:
(342/385.ccls. or 342/386.ccls. or 342/387.ccls. or 342/388.ccls. or 342/389.ccls. or 342/390.ccls. or 342/391.ccls. or 342/392.ccls. or 342/393.ccls. or 342/394.ccls. or 342/395.ccls. or 342/396.ccls. or 342/397.ccls. or 342/398.ccls. or 342/399.ccls. or 342/400.ccls. or 342/401.ccls. or 342/402.ccls. or 342/403.ccls. or 342/404.ccls. or 342/405.ccls. or 342/406.ccls. or 342/407.ccls. or 342/408.ccls. or 342/409.ccls. or 342/410.ccls. or 342/411.ccls. or 342/412.ccls. or 342/413.ccls. or 342/414.ccls. or 342/415.ccls. or 342/416.ccls. or 342/417.ccls. or 342/418.ccls. or 342/419.ccls. or 342/420.ccls. or 342/421.ccls. or 342/422.ccls. or 342/423.ccls. or 342/424.ccls. or 342/425.ccls. or 342/426.ccls. or 342/427.ccls. or 342/428.ccls. or 342/429.ccls. or 342/430.ccls. or 342/431.ccls. or 342/432.ccls. or 342/433.ccls. or 342/434.ccls. or 342/435.ccls. or 342/436.ccls. or 342/437.ccls. or 342/438.ccls. or 342/439.ccls. or 342/440.ccls. or 342/441.ccls. or 342/442.ccls. or 342/443.ccls. or 342/444.ccls. or 342/445.ccls. or 342/446.ccls. or 342/447.ccls. or 342/448.ccls. or 342/449.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.