Inventor · disambiguated record
Chester E. Duffield, Iii
Also filed as: DUFFIELD III CHESTER E
7 granted patents·11 citations·filing 2014–2021
75Inventor score
Top patents by PatentIndex Score
7 records- 0194US11015498B2Crankcase ventilation system with a flow control device for on board diagnosticsDAYCO IP HOLDINGS LLC·Filed 2020·Granted May 25, 2021·4 cites·22 claims
- 0286US11408361B2Charge air cooler drain systemDAYCO IP HOLDINGS LLC·Filed 2021·Granted Aug 9, 2022·2 cites·11 claims
- 0377US10203025B2Belt tensioner with supplemental force elementLINDSTROM JAMES KEVIN·Filed 2014·Granted Feb 12, 2019·5 cites·8 claims
- 0461US11492936B2Crankcase ventilation system with constant restriction in the flow direction and free flow in an opposite directionDAYCO IP HOLDINGS LLC·Filed 2020·Granted Nov 8, 2022·0 cites·17 claims
- 0556US11415086B2Three port, five-way magnetically latching valve for fuel vapor management systems and systems incorporating sameDAYCO IP HOLDINGS LLC·Filed 2021·Granted Aug 16, 2022·0 cites·20 claims
- 0653US11486504B2Check valve insert defining an open position and check valves having sameDAYCO IP HOLDINGS LLC·Filed 2019·Granted Nov 1, 2022·0 cites·17 claims
- 0748US11300080B2Fuel tank protector valve and engine systems having sameDAYCO IP HOLDINGS LLC·Filed 2020·Granted Apr 12, 2022·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →