Assignee
O'BRIEN J PATRICK
US·2 granted patents·1 pending application·5 citations·filing 2011–2015
Top patents by PatentIndex Score
3 records- 0143US8752471B2Concentric cylinder gas-operated automatic firearmO'BRIEN J PATRICK·Filed 2011·Granted Jun 17, 2014·5 cites·16 claims
- 0227US8967033B1Concentric cylinder gas-operated automatic firearmO'BRIEN J PATRICK·Filed 2014·Granted Mar 3, 2015·0 cites·16 claims
- 0323US2015369550A1Concentric cylinder gas-operated automatic firearmO'BRIEN J PATRICK·Filed 2015·Application pending·0 cites
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