USPC Class Details

Description: 342 communications: directive radio wave systems and devices (e.g., radar, radio navigation) / 342 communications: directive radio wave systems and devices (e.g., radar, radio navigation)/(350) directive (352) including a satellite (357.2) with position, velocity, or attitude determination (ipc) (357.21) determining a navigation solution using signals transmitted by a satellite radio beacon positioning system (357.22) satellite radio beacon positioning system transmitting time-stamped messages; e.g., gps [global positioning system], glonass [global orbiting navigation satellite system] or galileo (ipc) (357.25) determining position (ipc) (357.33) whereby the position solution is constrained to lie upon a particular curve or surface; e.g., for locomotives on railway tracks (ipc)

Hierarchy/Derived subclasses

342 / 350-> 352-> 357.2-> ipc-> 357.21-> 357.22 -> 357.25 -> 357.33 

uspto searches

Patent Apps in 342/357.33

Granted Patents in 342/357.33

Use the links above or do an advanced search in ppubs for:
(342/357.33.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.
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