Hierarchy/Derived subclasses
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uspto searches
Patent Apps in 277/358Granted Patents in 277/358
Use the links above or do an advanced search in ppubs for:
(277/358.ccls. or 277/359.ccls. or 277/360.ccls. or 277/361.ccls. or 277/362.ccls. or 277/363.ccls. or 277/364.ccls. or 277/365.ccls. or 277/366.ccls. or 277/367.ccls. or 277/368.ccls. or 277/369.ccls. or 277/370.ccls. or 277/371.ccls. or 277/372.ccls. or 277/373.ccls. or 277/374.ccls. or 277/375.ccls. or 277/376.ccls. or 277/377.ccls. or 277/378.ccls. or 277/379.ccls. or 277/380.ccls. or 277/381.ccls. or 277/382.ccls. or 277/383.ccls. or 277/384.ccls. or 277/385.ccls. or 277/386.ccls. or 277/387.ccls. or 277/388.ccls. or 277/389.ccls. or 277/390.ccls. or 277/391.ccls. or 277/392.ccls. or 277/393.ccls. or 277/394.ccls. or 277/395.ccls. or 277/396.ccls. or 277/397.ccls. or 277/398.ccls. or 277/399.ccls. or 277/400.ccls. or 277/401.ccls. or 277/402.ccls. or 277/403.ccls. or 277/404.ccls. or 277/405.ccls. or 277/406.ccls. or 277/407.ccls. or 277/408.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.