Inventor · disambiguated record
Curtis Johnson
Also filed as: JOHNSON CURTIS · JOHNSON CURTIS WILLIAM
4 granted patents·26 citations·filing 2002–2018
72Inventor score
Top patents by PatentIndex Score
4 records- 0175US9611695B2Dual pipe drilling head with improved bearing retention structureCHARLES MACHINE WORKS·Filed 2014·Granted Apr 4, 2017·5 cites·26 claims
- 0263US6981365B1Supersonic revolving nozzleSIERRA ENGINEERING INC·Filed 2002·Granted Jan 3, 2006·17 cites·10 claims
- 0352US7062901B1Variable geometry nozzle with flexible side wallSIERRA ENGINEERING INC·Filed 2005·Granted Jun 20, 2006·4 cites·6 claims
- 0443US11255152B2Drill hole inner tube plugHY TECH DRILLING LTD·Filed 2018·Granted Feb 22, 2022·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →