Inventor · disambiguated record
Christopher Brian Walker
Also filed as: WALKER CHRISTOPHER BRIAN
4 granted patents·2 citations·filing 2016–2017
58Inventor score
Files withNAT OILWELL VARCO LP4
Top patents by PatentIndex Score
4 records- 0160US10947796B2Power swivel and gooseneckNAT OILWELL VARCO LP·Filed 2016·Granted Mar 16, 2021·1 cites·23 claims
- 0257US11136826B2Guidance systems and apparatus for power swivelNAT OILWELL VARCO LP·Filed 2016·Granted Oct 5, 2021·1 cites·16 claims
- 0344US10563770B2Washpipe assemblies for a power swivelNAT OILWELL VARCO LP·Filed 2017·Granted Feb 18, 2020·0 cites·21 claims
- 0439US11421479B2Power swivel and lubrication systemNAT OILWELL VARCO LP·Filed 2016·Granted Aug 23, 2022·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →