Assignee
SPRAGUE ROBERT
US8 patents
Top patents by PatentIndex Score
US8730153B2May 20, 2014
Driving bistable displays
SPRAGUE ROBERT108 citations98
US8243013B1Aug 14, 2012
Driving bistable displays
SPRAGUE ROBERT190 citations98
US9460666B2Oct 4, 2016
Driving methods and waveforms for electrophoretic displays
SPRAGUE ROBERT108 citations97
US9373289B2Jun 21, 2016
Driving methods and circuit for bi-stable displays
SPRAGUE ROBERT109 citations97
US8786935B2Jul 22, 2014
Color electrophoretic display
SPRAGUE ROBERT123 citations97
US4768959ASep 6, 1988
Method of teaching and transcribing of language through the use of a periodic code of language elements
SPRAGUE ROBERT27 citations90
US4650423AMar 17, 1987
Method of teaching and transcribing of language through the use of a periodic code of language elements
SPRAGUE ROBERT37 citations90
US4795349AJan 3, 1989
Coded font keyboard apparatus
SPRAGUE ROBERT15 citations71