Hierarchy/Derived subclasses
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uspto searches
Patent Apps in 224/191Granted Patents in 224/191
Use the links above or do an advanced search in ppubs for:
(224/191.ccls. or 224/192.ccls. or 224/193.ccls. or 224/587.ccls. or 224/194.ccls. or 224/195.ccls. or 224/196.ccls. or 224/197.ccls. or 224/198.ccls. or 224/199.ccls. or 224/200.ccls. or 224/201.ccls. or 224/600.ccls. or 224/601.ccls. or 224/602.ccls. or 224/603.ccls. or 224/604.ccls. or 224/605.ccls. or 224/606.ccls. or 224/607.ccls. or 224/608.ccls. or 224/609.ccls. or 224/610.ccls. or 224/611.ccls. or 224/612.ccls. or 224/613.ccls. or 224/614.ccls. or 224/615.ccls. or 224/616.ccls. or 224/617.ccls. or 224/618.ccls. or 224/619.ccls. or 224/620.ccls. or 224/621.ccls. or 224/622.ccls. or 224/623.ccls. or 224/624.ccls. or 224/625.ccls. or 224/626.ccls. or 224/627.ccls. or 224/628.ccls. or 224/629.ccls. or 224/630.ccls. or 224/631.ccls. or 224/632.ccls. or 224/633.ccls. or 224/634.ccls. or 224/635.ccls. or 224/636.ccls. or 224/637.ccls. or 224/638.ccls. or 224/639.ccls. or 224/640.ccls. or 224/641.ccls. or 224/642.ccls. or 224/643.ccls. or 224/644.ccls. or 224/645.ccls. or 224/646.ccls. or 224/647.ccls. or 224/648.ccls. or 224/649.ccls. or 224/650.ccls. or 224/651.ccls. or 224/652.ccls. or 224/653.ccls. or 224/654.ccls. or 224/655.ccls. or 224/656.ccls. or 224/657.ccls. or 224/658.ccls. or 224/659.ccls. or 224/217.ccls. or 224/218.ccls. or 224/219.ccls. or 224/220.ccls. or 224/221.ccls. or 224/222.ccls. or 224/223.ccls. or 224/660.ccls. or 224/661.ccls. or 224/662.ccls. or 224/663.ccls. or 224/664.ccls. or 224/665.ccls. or 224/666.ccls. or 224/667.ccls. or 224/668.ccls. or 224/669.ccls. or 224/670.ccls. or 224/671.ccls. or 224/672.ccls. or 224/673.ccls. or 224/674.ccls. or 224/675.ccls. or 224/676.ccls. or 224/677.ccls. or 224/678.ccls. or 224/679.ccls. or 224/680.ccls. or 224/681.ccls. or 224/682.ccls. or 224/683.ccls. or 224/684.ccls. or 224/230.ccls. or 224/231.ccls. or 224/232.ccls. or 224/233.ccls. or 224/234.ccls. or 224/235.ccls. or 224/236.ccls. or 224/237.ccls. or 224/238.ccls. or 224/239.ccls. or 224/240.ccls. or 224/241.ccls. or 224/242.ccls. or 224/243.ccls. or 224/244.ccls. or 224/245.ccls. or 224/246.ccls. or 224/247.ccls. or 224/248.ccls. or 224/249.ccls. or 224/250.ccls. or 224/251.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.