Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and an apparatus for determining refraction of the human eye

Method and an apparatus for determining refraction of the human eye

US Patent 4637700 · Granted Jan 20, 1987

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Non-contact fluid applicator apparatus and method1995
Fiber optic interferometric hydrophone1988
Method and an apparatus for determining the refraction1988
Geometric balance adjustment of thin film strain gage sensors1984
Geometric balance adjustment of thin film strain gage sensors1982