Inventor · disambiguated record
John Andrew Grant Clarke
Also filed as: CLARKE JOHN A · CLARKE JOHN ANDREW · CLARKE JOHN ANDREW GRANT
3 granted patents·50 citations·filing 1998–2016
61Inventor score
Top patents by PatentIndex Score
3 records- 0161US6129159AVibratory drill head apparatusMPI DRILLING·Filed 1998·Granted Oct 10, 2000·50 cites·11 claims
- 0238US10333431B2NanopositionerELEKTRON TECH UK LIMITED·Filed 2016·Granted Jun 25, 2019·0 cites·20 claims
- 0326US6354384B1Surface effect drilling craft for obtaining continuous core samplesUS INTERIOR·Filed 2000·Granted Mar 12, 2002·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →