Inventor · disambiguated record
Mark A. Johnston
Also filed as: JOHNSTON MARK · JOHNSTON MARK A · JOHNSTON MARK ANDREW
37 granted patents·10 pending applications·740 citations·filing 1986–2024
97Inventor score
Files withCOVIDIEN LP23UNITED TECHNOLOGIES CORP4DEERE & CO3HAMILTON SUNDSTRAND CORP3KAMENETZ JEFFRY K3
Top patents by PatentIndex Score
47 records- 0195US9033973B2System and method for DC tissue impedance sensingKRAPOHL JAMES E·Filed 2011·Granted May 19, 2015·252 cites·12 claims
- 0292US5190112ARotary hoe extensionYETTER MFG·Filed 1991·Granted Mar 2, 1993·75 cites·19 claims
- 0390US5189620AControl system for gas turbine helicopter engines and the likeUNITED TECHNOLOGIES CORP·Filed 1989·Granted Feb 23, 1993·78 cites·12 claims
- 0489US8051289B2Electronic document management and deliveryAVOW SYSTEMS INC·Filed 2010·Granted Nov 1, 2011·23 cites·20 claims
- 0583US8617154B2Current-fed push-pull converter with passive voltage clampJOHNSTON MARK A·Filed 2010·Granted Dec 31, 2013·19 cites·10 claims
- 0679US9625894B2Multi-channel control switchover logicKAMENETZ JEFFRY K·Filed 2011·Granted Apr 18, 2017·7 cites·14 claims
- 0779US7168376B2Seed boot for a seeding machineDEERE & CO·Filed 2003·Granted Jan 30, 2007·36 cites·13 claims
- 0879US5303142AControl system for gas turbine helicopter engines and the likeUNITED TECHNOLOGIES CORP·Filed 1993·Granted Apr 12, 1994·47 cites·6 claims
- 0978US8340793B2Architecture using integrated backup control and protection hardwareKAMENETZ JEFFRY K·Filed 2010·Granted Dec 25, 2012·6 cites·20 claims
- 1077US10869712B2System and method for high frequency leakage reduction through selective harmonic elimination in electrosurgical generatorsCOVIDIEN LP·Filed 2016·Granted Dec 22, 2020·3 cites·12 claims
- 1177US2024293166A1Control systems for electrosurgical generatorCOVIDIEN LP·Filed 2024·Application pending·0 cites
- 1276US9265560B2System and method for detecting and suppressing arc formation during an electrosurgical procedureJOHNSTON MARK A·Filed 2011·Granted Feb 23, 2016·8 cites·13 claims
- 1375US4947770ACoulter and fertilizer applicator linkage arrangementYETTER MFG·Filed 1989·Granted Aug 14, 1990·41 cites·4 claims
- 1474US9449746B2Methods of manufacturing planar transformersCOVIDIEN LP·Filed 2013·Granted Sep 20, 2016·3 cites·6 claims
- 1574US5046923AHelicopter autorotation detection and recoveryUNITED TECHNOLOGIES CORP·Filed 1989·Granted Sep 10, 1991·37 cites·17 claims
- 1674US2024360581A1Thermal cutting elements, electrosurgical instruments including thermal cutting elements, and methods of manufacturingCOVIDIEN LP·Filed 2024·Application pending·0 cites
- 1773US9770283B2Systems and methods for improving efficiency of electrosurgical generatorsCOVIDIEN LP·Filed 2014·Granted Sep 26, 2017·6 cites·16 claims
- 1873US7487732B2Boot with scraper for a fertilizer opener in an agricultural machineDEERE & CO·Filed 2006·Granted Feb 10, 2009·13 cites·25 claims
- 1972US9483032B2Multi-channel protection logicKAMENETZ JEFFRY K·Filed 2011·Granted Nov 1, 2016·3 cites·10 claims
- 2070US11969201B2Control systems for electrosurgical generatorCOVIDIEN LP·Filed 2021·Granted Apr 30, 2024·0 cites·14 claims
- 2170US9839469B2Systems and methods for improving efficiency of electrosurgical generatorsCOVIDIEN LP·Filed 2014·Granted Dec 12, 2017·4 cites·16 claims
- 2268US11090106B2Control systems for electrosurgical generatorCOVIDIEN LP·Filed 2016·Granted Aug 17, 2021·1 cites·20 claims
- 2366US4817046ADetection of engine failure in a multi-engine aircraftUNITED TECHNOLOGIES CORP·Filed 1986·Granted Mar 28, 1989·23 cites·6 claims
- 2465US11365490B2Thermal cutting elements, electrosurgical instruments including thermal cutting elements, and methods of manufacturingCOVIDIEN LP·Filed 2020·Granted Jun 21, 2022·0 cites·20 claims
- 2564US12049706B2Thermal cutting elements, electrosurgical instruments including thermal cutting elements, and methods of manufacturingCOVIDIEN LP·Filed 2020·Granted Jul 30, 2024·0 cites·20 claims
- 2664US10747186B2Multi-channel control switchover logicHAMILTON SUNDSTRAND CORP·Filed 2019·Granted Aug 18, 2020·0 cites·6 claims
- 2762US8006996B1Collapsible work cartJOHNSTON MARK·Filed 2009·Granted Aug 30, 2011·8 cites·7 claims
- 2860US10987154B2Electrosurgical generators and sensorsCOVIDIEN LP·Filed 2019·Granted Apr 27, 2021·0 cites·20 claims
- 2957US2017351233A1Multi-channel control switchover logicHAMILTON SUNDSTRAND CORP·Filed 2017·Application pending·0 cites
- 3056US4986200ADepth gauge wheelYETTER MFG·Filed 1989·Granted Jan 22, 1991·23 cites·6 claims
- 3156US2009236379A1bag having a shopping trolley insertJOHNSTON CHERYL LEANNE·Filed 2009·Application pending·0 cites
- 3255US9522041B2Current-fed push-pull converter with passive voltage clampCOVIDIEN LP·Filed 2013·Granted Dec 20, 2016·0 cites·7 claims
- 3354US10507054B2System and method for detecting and supressing arc formation during an electrosurgical procedureCOVIDIEN LP·Filed 2016·Granted Dec 17, 2019·0 cites·13 claims
- 3454US2022387093A1Multiplexed hand switches for use with electrosurgical generatorsCOVIDIEN LP·Filed 2022·Application pending·0 cites
- 3554US2023108257A1Multiplexed hand switches for use with electrosurgical generatorsCOVIDIEN LP·Filed 2022·Application pending·0 cites
- 3653US10292753B2Electrosurgical generators and sensorsCOVIDIEN LP·Filed 2014·Granted May 21, 2019·0 cites·17 claims
- 3752US9772615B2Multi-channel control switchover logicHAMILTON SUNDSTRAND CORP·Filed 2013·Granted Sep 26, 2017·0 cites·6 claims
- 3851US2024032987A1Surgical instruments, systems, and methods incorporating ultrasonic and electrosurgical functionalityCOVIDIEN LP·Filed 2021·Application pending·0 cites
- 3950US2021282837A1Thermal cutting-assisted tissue resection devices and systemsCOVIDIEN LP·Filed 2021·Application pending·0 cites
- 4049US9196414B2Planar transformers having reduced termination lossesCOVIDIEN LP·Filed 2013·Granted Nov 24, 2015·0 cites·21 claims
- 4148US10281496B2Electrosurgical generators and sensorsCOVIDIEN LP·Filed 2014·Granted May 7, 2019·0 cites·17 claims
- 4248US2015223865A1System and method for dc tissue impedance sensingCOVIDIEN LP·Filed 2015·Application pending·0 cites
- 4347US10278764B2Electrosurgical generators and sensorsCOVIDIEN LP·Filed 2014·Granted May 7, 2019·0 cites·16 claims
- 4446US10390876B2Planar transformers having reduced termination lossesCOVIDIEN LP·Filed 2016·Granted Aug 27, 2019·0 cites·6 claims
- 4542US5595131AFlexible and resilient supports for a grain boxDEERE & CO·Filed 1995·Granted Jan 21, 1997·11 cites·10 claims
- 4636US5055317AMethod for coating elongated workpiecesHOFFMAN KATHLEEN·Filed 1989·Granted Oct 8, 1991·13 cites·11 claims
- 4733US2006150612A1Thrust vector controlHONEYWELL INT INC·Filed 2005·Application pending·0 cites
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