Inventor · disambiguated record
Mark Graham Horwell
Also filed as: HORWELL MARK G · HORWELL MARK GRAHAM
3 granted patents·7 citations·filing 2011–2015
60Inventor score
Top patents by PatentIndex Score
3 records- 0167US8342382B2Determining the quality of a friction weld using a double differentialROLLS ROYCE PLC·Filed 2011·Granted Jan 1, 2013·2 cites·12 claims
- 0263US10502027B2Oil field tubular and an internal sleeve for use therewith, and a method of deactivating a float valve within the oil field tubularSWITCHFLOAT HOLDINGS LTD·Filed 2015·Granted Dec 10, 2019·2 cites·20 claims
- 0358US10151173B2Float valve hold open devices and methods thereforSWITCHFLOAT HOLDINGS LTD·Filed 2013·Granted Dec 11, 2018·3 cites·19 claims
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