Assignee
JOHNSON ROBERT S
US·2 granted patents·1 pending application·0 citations·filing 2008–2013
Top patents by PatentIndex Score
3 records- 0145US8124422B2Sample collection system and methodJOHNSON ROBERT S·Filed 2008·Granted Feb 28, 2012·0 cites·8 claims
- 0243US2014097139A1Solid phase extraction disk holder apparatusJOHNSON ROBERT S·Filed 2013·Application pending·0 cites
- 0341US8313953B2Sample collection system and methodJOHNSON ROBERT S·Filed 2012·Granted Nov 20, 2012·0 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →