Inventor · disambiguated record
Ray Johns
Also filed as: JOHNS RAY
3 granted patents·37 citations·filing 1990–1990
70Inventor score
Technology areasE21B
Files withEXPLORATION & PROD SERV3
Top patents by PatentIndex Score
3 records- 0145US5259456ADrill stem test toolsEXPLORATION & PROD SERV·Filed 1990·Granted Nov 9, 1993·22 cites·17 claims
- 0231US5193619AWell control apparatusEXPLORATION & PROD SERV·Filed 1990·Granted Mar 16, 1993·8 cites·20 claims
- 0330US5222559AValvesEXPLORATION & PROD SERV·Filed 1990·Granted Jun 29, 1993·7 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →