Inventor · disambiguated record
Stephen Ross Maddux
Also filed as: MADDUX STEPHEN · MADDUX STEPHEN ROSS
8 granted patents·32 citations·filing 2013–2024
81Inventor score
Technology areasE21B
Files withHALLIBURTON ENERGY SERVICES INC8
Top patents by PatentIndex Score
8 records- 0189US11352853B2Wellbore fluid communication toolHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Jun 7, 2022·7 cites·20 claims
- 0287US9869157B2Reverse circulation cementing system for cementing a linerHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Jan 16, 2018·14 cites·24 claims
- 0380US10053954B2Cementing a liner using reverse circulationHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Aug 21, 2018·8 cites·18 claims
- 0476US11753906B2Ball seat release apparatus including sliding shear sleeveHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Sep 12, 2023·1 cites·20 claims
- 0573US11078756B2Method and apparatus for introducing a junction assembly including a transition joint and a load transfer deviceHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Aug 3, 2021·2 cites·20 claims
- 0662US12352138B2Expansion tool with a hybrid cone for expansion of an expandable liner hanger in a wellboreHALLIBURTON ENERGY SERVICES INC·Filed 2023·Granted Jul 8, 2025·0 cites·19 claims
- 0760US12509967B2Expandable liner hanger assembly having anchor key in dovetail groove on hanger bodyHALLIBURTON ENERGY SERVICES INC·Filed 2024·Granted Dec 30, 2025·0 cites·19 claims
- 0856US12060777B2Liner hanger expansion tool with rotating ball valveHALLIBURTON ENERGY SERVICES INC·Filed 2022·Granted Aug 13, 2024·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →