Inventor · disambiguated record
Ralph William Graeme Johns
Also filed as: JOHNS RALPH WILLIAM GRAEME
3 granted patents·1 pending application·13 citations·filing 2009–2021
64Inventor score
Top patents by PatentIndex Score
4 records- 0181US9963937B2Method and apparatus for controlling downhole rotational rate of a drilling toolDRECO ENERGY SERVICES ULC·Filed 2015·Granted May 8, 2018·4 cites·19 claims
- 0264US9822587B2Method and apparatus for controlling downhole rotational rate of a drilling toolDRECO ENERGY SERVICES ULC·Filed 2015·Granted Nov 21, 2017·1 cites·11 claims
- 0364US9206647B2Method and apparatus for controlling downhole rotational rate of a drilling toolPRILL JONATHAN RYAN·Filed 2009·Granted Dec 8, 2015·8 cites·25 claims
- 0447US2023415348A1Method and system for image processing using a vision pipelineAPERA AL INC·Filed 2021·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →