Hierarchy/Derived subclasses
318 / 560 | -> 638 | -> 639 | |||
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uspto searches
Patent Apps in 318/638Granted Patents in 318/638
Use the links above or do an advanced search in ppubs for:
(318/638.ccls. or 318/639.ccls. or 318/640.ccls. or 318/641.ccls. or 318/642.ccls. or 318/643.ccls. or 318/644.ccls. or 318/645.ccls. or 318/646.ccls. or 318/647.ccls. or 318/648.ccls. or 318/649.ccls. or 318/650.ccls. or 318/651.ccls. or 318/652.ccls. or 318/653.ccls. or 318/654.ccls. or 318/655.ccls. or 318/656.ccls. or 318/657.ccls. or 318/658.ccls. or 318/659.ccls. or 318/660.ccls. or 318/661.ccls. or 318/662.ccls. or 318/663.ccls. or 318/664.ccls. or 318/665.ccls. or 318/666.ccls. or 318/667.ccls. or 318/668.ccls. or 318/669.ccls. or 318/670.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.