Assignee
JOHNSON CLARK E JUN
US·3 granted patents·33 citations·filing 1977–2011
Top patents by PatentIndex Score
3 records- 0185US4119911AMagnetoresistor displacement sensor using a magnetoresistor positioned between relatively moving magnetized toothed membersJOHNSON CLARK E JUN·Filed 1977·Granted Oct 10, 1978·33 cites·10 claims
- 0259US8077844B2Dial up telephone conferencing system controlled by an online computer networkJOHNSON CLARK E JUN·Filed 2009·Granted Dec 13, 2011·0 cites·23 claims
- 0353US8855278B2Dial up telephone conferencing system controlled by an online computer networkJOHNSON CLARK E JUN·Filed 2011·Granted Oct 7, 2014·0 cites·20 claims
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