Simple or compound lenses

Introduced: September 1968

CPC subdivides this area 2x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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G02B 2003/0093 2nd only CPC only CPC only
G02B 3/0006 +3 CPC CPC only CPC only
G02B 3/0081 CPC only CPC only
G02B 3/0087 CPC only CPC only
G02B 3/02 with non-spherical faces (G02B3/10 takes precedence) IPC+CPC Available in IPC and CPC
G02B 3/10 Bifocal lenses; Multifocal lenses IPC+CPC Available in IPC and CPC
G02B 3/12 Fluid-filled or evacuated lenses IPC+CPC Available in IPC and CPC