Inventor

YANCEY DON R

US6 patents

⚠️ This page may combine multiple inventors who share the name “YANCEY DON R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YANCEY DON R

2 patents

US5329322AJul 12, 1994

Palm size autorefractor and fundus topographical mapping instrument

YANCEY DON R118 citations94

US4257689AMar 24, 1981

Pulse pattern visual acuity device

YANCEY DON R15 citations70

DAPHNE INSTR INC

2 patents

US7001020B2Feb 21, 2006

Complete autorefractor system in an ultra-compact package

DAPHNE INSTR INC30 citations89

US7481535B2Jan 27, 2009

Complete autorefractor system in an ultra-compact package

DAPHNE INSTR INC7 citations70

DAPHNE EYE TECHNOLOGIES

1 patent

US5684561ANov 4, 1997

Device and method for evaluation of refraction of the eye

DAPHNE EYE TECHNOLOGIES85 citations91

CAIN RESEARCH PTY LTD

1 patent

US5576780ANov 19, 1996

Method for evaluation of length of focus of the eye

CAIN RESEARCH PTY LTD87 citations91