USPC Class Details

Description: 351 optics: eye examining, vision testing and correcting / 351 optics: eye examining, vision testing and correcting/(41) spectacles and eyeglasses (159.01) ophthalmic lenses (159.02) eye contact (159.24) colored (159.27) with polarization

Hierarchy/Derived subclasses

351 / 41

-> 159.01

-> 159.02

-> 159.24

-> 159.27

uspto searches

Patent Apps in 351/159.27

Granted Patents in 351/159.27

Use the links above or do an advanced search in ppubs for:
(351/159.27.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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