Inventor · disambiguated record
David Leo Sigl
Also filed as: SIGL DAVID L · SIGL DAVID LEO
3 granted patents·16 citations·filing 2003–2008
66Inventor score
Files withDEERE & CO3
Top patents by PatentIndex Score
3 records- 0163US7798241B2Mechanical hitch control unitDEERE & CO·Filed 2008·Granted Sep 21, 2010·7 cites·10 claims
- 0256US7553408B2Hydraulic lubrication filter circuitDEERE & CO·Filed 2006·Granted Jun 30, 2009·4 cites·7 claims
- 0347US6976504B2Selectable detent relief valveDEERE & CO·Filed 2003·Granted Dec 20, 2005·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →