Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Highest-ophthalmic-quality hand-assembled instant multi-focal prescription eyeglasses custom adjusted to wearer astigmatism, pupillary distance and/or segment height

US Patent 5790227 · Granted Aug 4, 1998

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →