Individual holder
COLGREN RICHARD D
3 granted patents·121 citations·filing 1990–2007
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0186USD596267SModular unmanned air-vehicleCOLGREN RICHARD D·Filed 2006·Granted Jul 14, 2009·47 cites·1 claims
- 0285US7922115B2Modular unmanned air-vehicleCOLGREN RICHARD D·Filed 2007·Granted Apr 12, 2011·64 cites·12 claims
- 0329US5063735ARocket-powered ducted fan engineCOLGREN RICHARD D·Filed 1990·Granted Nov 12, 1991·10 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →