Inventor · disambiguated record
John Hayward
Also filed as: HAYWARD JOHN · HAYWARD JOHN A D · HAYWARD JOHN ALBERT DAVID · HAYWARD JOHN S
7 granted patents·1 pending application·484 citations·filing 1974–2006
90Inventor score
Top patents by PatentIndex Score
8 records- 0194US5992547ARotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Nov 30, 1999·159 cites·8 claims
- 0289US5967246ARotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Oct 19, 1999·111 cites·13 claims
- 0383US6092613ARotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Jul 25, 2000·76 cites·8 claims
- 0480US5904213ARotary drill bitsCAMCO INT UK LTD·Filed 1997·Granted May 18, 1999·68 cites·16 claims
- 0572US4280783ALost motion linkage assembly for a front loaderHAYWARD JOHN A D·Filed 1979·Granted Jul 28, 1981·22 cites·10 claims
- 0659US5819862ADownhole components for use in subsurface drillingFiled 1996·Granted Oct 13, 1998·40 cites·17 claims
- 0744US2007023248A1Clutch assemblyTIMKEN US CORP·Filed 2006·Application pending·0 cites
- 0835US3952896AHydraulic linkagesHAYWARD J A D·Filed 1974·Granted Apr 27, 1976·8 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →