Inventor · disambiguated record
D. Peter Johnson
Also filed as: JOHNSON D PETER
2 granted patents·3 pending applications·1 citations·filing 2016–2021
34Inventor score
Top patents by PatentIndex Score
5 records- 0165US10947814B2Pilot controlled actuation valve systemSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Mar 16, 2021·1 cites·20 claims
- 0259US11795781B2Actuation valve system with pilot and main valvesSCHLUMBERGER TECHNOLOGY CORP·Filed 2021·Granted Oct 24, 2023·0 cites·20 claims
- 0335US2018016850A1Downhole Outer Drill BitNOVATEK IP LLC·Filed 2016·Application pending·0 cites
- 0434US2018163891A1Fluid Pressure Bistable ValveNOVATEK IP LLC·Filed 2016·Application pending·0 cites
- 0534US2018163890A1Hammering ValveNOVATEK IP LLC·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →