Assignee

PIERCE HAROLD D

US·2 granted patents·93 citations·filing 1992–2012

Technology mixA63H1 G09B1 H04R1

Top patents by PatentIndex Score

2 records

0177US5356296AAudio storybookPIERCE HAROLD D·Filed 1992·Granted Oct 18, 1994·88 cites·1 claims
0275US8675908B2Low cost programmable sound recording and playback device and method for communicating with, and recharging of, the devicePIERCE HAROLD D·Filed 2012·Granted Mar 18, 2014·5 cites·19 claims

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