Inventor · disambiguated record
David N. Spencer
Also filed as: SPENCER DAVID · SPENCER DAVID N · SPENCER DAVID NEIL
4 granted patents·52 citations·filing 2005–2020
75Inventor score
Top patents by PatentIndex Score
4 records- 0180US8151890B2System, method and apparatus for a modular production tree assembly to reduce weight during transfer of tree to rigSPENCER DAVID N·Filed 2008·Granted Apr 10, 2012·28 cites·19 claims
- 0280US7287739B2Fast closing well chokeVETCO GRAY INC·Filed 2005·Granted Oct 30, 2007·16 cites·18 claims
- 0377US11867024B2Manifold and fluid flow controlBaker Hughes Energy Technology UK Ltd·Filed 2020·Granted Jan 9, 2024·2 cites·19 claims
- 0454US8056634B2Off-center running tool for subsea treeSPENCER DAVID N·Filed 2008·Granted Nov 15, 2011·6 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →