Eye Contact Patents (Class 351/159.02)
- Progressive (Class 351/159.06)
- Astigmatic correction (Class 351/159.07)
- Lens pairs having differing profile (Class 351/159.08)
- Ghost image or blur reduction (Class 351/159.09)
- Specific viewing zones (Class 351/159.1)
- Having a diffractive portion (Class 351/159.15)
- With off-axis viewing zone (Class 351/159.16)
- Prismatic (Class 351/159.17)
- Having means to regulate pressure (Class 351/159.18)
- Having a means to limit or facilitate movement (Class 351/159.19)
- Aspherical (Class 351/159.2)
- Digitally encoded (Class 351/159.25)
- Having a diffractive portion (Class 351/159.26)
- With polarization (Class 351/159.27)
- With indicia (Class 351/159.28)
- Protective color (Class 351/159.29)
- Multiple colors (Class 351/159.3)
- Graded density distribution (Class 351/159.31)
- Particular color (Class 351/159.32)