Inventor · disambiguated record
Richard P. Johnston
Also filed as: JOHNSTON RICHARD · JOHNSTON RICHARD P · JOHNSTON RICHARD PAUL
19 granted patents·2 pending applications·695 citations·filing 1975–2020
95Inventor score
Top patents by PatentIndex Score
21 records- 0197US4856463AVariable-cycle reciprocating internal combustion engineJOHNSTON RICHARD P·Filed 1988·Granted Aug 15, 1989·95 cites·24 claims
- 0294US9198825B2Increase electrode life in devices used for extracorporeal shockwave therapy (ESWT)SANUWAVE INC·Filed 2013·Granted Dec 1, 2015·46 cites·4 claims
- 0394US4329114AActive clearance control system for a turbomachineNASA·Filed 1979·Granted May 11, 1982·149 cites·17 claims
- 0493US5058536AVariable-cycle reciprocating internal combustion engineJOHNSTON RICHARD P·Filed 1989·Granted Oct 22, 1991·63 cites·2 claims
- 0592US10618633B1Propeller outer slipstream control system for counter-rotating propellersJOHNSTON RICHARD P·Filed 2016·Granted Apr 14, 2020·9 cites·6 claims
- 0691US9566209B2Shock wave electrodes with fluid holesSANUWAVE INC·Filed 2015·Granted Feb 14, 2017·30 cites·20 claims
- 0787US5735666ASystem and method of controlling thrust forces on a thrust bearing in a rotating structure of a gas turbine engineGEN ELECTRIC·Filed 1996·Granted Apr 7, 1998·43 cites·19 claims
- 0885US6085546AMethod and apparatus for the partial conversion of natural gas to liquid natural gasFiled 1998·Granted Jul 11, 2000·56 cites·69 claims
- 0985US5039281AMethod and apparatus for supplying compressed air to auxiliary systems of a vehicleGEN ELECTRIC·Filed 1989·Granted Aug 13, 1991·44 cites·10 claims
- 1084US4102603AMultiple section rotor discGEN ELECTRIC·Filed 1975·Granted Jul 25, 1978·57 cites·22 claims
- 1173US6269656B1Method and apparatus for producing liquified natural gasFiled 1998·Granted Aug 7, 2001·34 cites·57 claims
- 1272US6085545ALiquid natural gas system with an integrated engine, compressor and expander assemblyFiled 1998·Granted Jul 11, 2000·31 cites·20 claims
- 1370US6085547ASimple method and apparatus for the partial conversion of natural gas to liquid natural gasFiled 1998·Granted Jul 11, 2000·30 cites·26 claims
- 1466US11708727B2Connection system for a marine drilling riserOIL STATES IND UK LTD·Filed 2019·Granted Jul 25, 2023·1 cites·24 claims
- 1564US12043369B1Propeller outer slipstream control system for counter-rotating propellersJOHNSTON RICHARD P·Filed 2020·Granted Jul 23, 2024·0 cites·13 claims
- 1644US11828111B2Apparatus and method relating to managed pressure drillingOIL STATES IND UK LTD·Filed 2019·Granted Nov 28, 2023·0 cites·32 claims
- 1740US4433955ATurbine arrangementGEN ELECTRIC·Filed 1981·Granted Feb 28, 1984·7 cites·12 claims
- 1840US2022381105A1Apparatus and method relating to managed pressure drilling (mpd) whilst using a subsea rcd systemOIL STATES IND UK LTD·Filed 2020·Application pending·0 cites
- 1939US7464825B2Pressure resistant baseGRAHAM PACKAGING CO·Filed 2004·Granted Dec 16, 2008·0 cites·11 claims
- 2038US2019330954A1Wear indicator for a joint between a riser and a floating platformOIL STATES IND UK LTD·Filed 2017·Application pending·0 cites
- 2135US12044093B2Apparatus and method relating to managed pressure drillingOIL STATES IND UK LTD·Filed 2020·Granted Jul 23, 2024·0 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →