Inventor · disambiguated record
Edward Welch
Also filed as: WELCH EDWARD W · WELCH EDWARD WAYNE · WELCH JR EDWARD W · WELCH JR EDWARD WAYNE
5 granted patents·1 pending application·108 citations·filing 1984–2007
83Inventor score
Top patents by PatentIndex Score
6 records- 0187US7401788B2High pressure and temperature seal for downhole useBAKER HUGHES INC·Filed 2007·Granted Jul 22, 2008·29 cites·13 claims
- 0275US7694742B2Downhole hydraulic control system with failsafe featuresBAKER HUGHES INC·Filed 2006·Granted Apr 13, 2010·16 cites·29 claims
- 0372US7552774B2Control line hydrostatic minimally sensitive control systemBAKER HUGHES INC·Filed 2006·Granted Jun 30, 2009·13 cites·20 claims
- 0469US6779600B2Labyrinth lock seal for hydrostatically set packerBAKER HUGHES INC·Filed 2001·Granted Aug 24, 2004·37 cites·17 claims
- 0563US4521761ASmall outline potentiometerSANGAMO WESTON·Filed 1984·Granted Jun 4, 1985·13 cites·14 claims
- 0634US2003222410A1High pressure and temperature seal for downhole useFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →