Inventor · disambiguated record
William Stephen Clapham
Also filed as: CLAPHAM WILLIAM STEPHEN
8 granted patents·1 pending application·232 citations·filing 1996–2014
87Inventor score
Files withHYDRA TOOLS INT PLC3HYDRA MINING TOOLS INTERNAT LT2BALL BRETT1CLAPHAM WILLIAM STEPHEN1ESCO CORP1
Top patents by PatentIndex Score
9 records- 0195USD420013SSleeve for tooling system for mineral winningHYDRA TOOLS INT PLC·Filed 1998·Granted Feb 1, 2000·114 cites·1 claims
- 0288USD413126SSleeve for tooling system for mineral winningHYDRA TOOLS INT PLC·Filed 1998·Granted Aug 24, 1999·40 cites·1 claims
- 0376US6099081APoint attack tooling system for mineral winningHYDRA TOOLS INTERNATIONAL LIMI·Filed 1998·Granted Aug 8, 2000·56 cites·9 claims
- 0450US10724369B2Mineral winning pick, pick holder, and combinationESCO CORP·Filed 2014·Granted Jul 28, 2020·0 cites·48 claims
- 0550US5744034AHydraulic circuitHYDRA TOOLS INT PLC·Filed 1996·Granted Apr 28, 1998·11 cites·3 claims
- 0649US9206686B2Cutter toolBALL BRETT·Filed 2012·Granted Dec 8, 2015·1 cites·8 claims
- 0748US6536847B2Pick box for housing a mineral cutter pickHYDRA MINING TOOLS INTERNAT LT·Filed 2001·Granted Mar 25, 2003·9 cites·10 claims
- 0843US6840585B2Rotary cutting head with water supplyHYDRA MINING TOOLS INTERNAT LT·Filed 2003·Granted Jan 11, 2005·1 cites·3 claims
- 0939US2014312679A1Cutting chainCLAPHAM WILLIAM STEPHEN·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →