Assignee
TRELL ANDERS EDVARD
SE·3 granted patents·1 pending application·21 citations·filing 1974–2015
Top patents by PatentIndex Score
4 records- 0173US3947641AUse of public subscriber telephone network; method and apparatusTRELL ANDERS EDVARD·Filed 1974·Granted Mar 30, 1976·20 cites·13 claims
- 0260US10305966B2System for authorization of accessTRELL ANDERS EDVARD·Filed 2015·Granted May 28, 2019·1 cites·9 claims
- 0348US9232033B2Attachable mobile phone keypad deviceTRELL ANDERS EDVARD·Filed 2014·Granted Jan 5, 2016·0 cites·17 claims
- 0429US2011211683A1Method and device by telephone entry systemsTRELL ANDERS EDVARD·Filed 2010·Application pending·0 cites
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