Inventor · disambiguated record
Grant Duncan
Also filed as: DUNCAN GRANT · DUNCAN GRANT JOHN
5 granted patents·1 pending application·80 citations·filing 1977–2015
78Inventor score
Top patents by PatentIndex Score
6 records- 0183US8360751B2Discharge pressure actuated pumpSUNCOR ENERGY INC·Filed 2007·Granted Jan 29, 2013·28 cites·24 claims
- 0281US8011901B2Discharge pressure actuated pumpSUNCOR ENERGY INC·Filed 2006·Granted Sep 6, 2011·10 cites·33 claims
- 0375US4111262AJunk bootSMITH INTERNATIONAL·Filed 1977·Granted Sep 5, 1978·42 cites·4 claims
- 0444US2013105173A1Discharge pressure actuated pumpSUNCOR ENERGY INC·Filed 2012·Application pending·0 cites
- 0538US10480294B2Methods for preserving zonal isolation within a subterranean formationSUNCOR ENERGY INC·Filed 2015·Granted Nov 19, 2019·0 cites·31 claims
- 0634US9316097B2In situ gravity drainage system and method for extracting bitumen from alternative pay regionsSUNCOR ENERGY INC·Filed 2014·Granted Apr 19, 2016·0 cites·32 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →