Inventor
JOHNSTON MARK A
US30 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSTON MARK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COVIDIEN LP
16 patentsUS9449746B2Sep 20, 2016
Methods of manufacturing planar transformers
COVIDIEN LP3 citations73
US9839469B2Dec 12, 2017
Systems and methods for improving efficiency of electrosurgical generators
COVIDIEN LP4 citations71
US9770283B2Sep 26, 2017
Systems and methods for improving efficiency of electrosurgical generators
COVIDIEN LP6 citations71
US10869712B2Dec 22, 2020
System and method for high frequency leakage reduction through selective harmonic elimination in electrosurgical generators
COVIDIEN LP3 citations70
US11090106B2Aug 17, 2021
Control systems for electrosurgical generator
COVIDIEN LP1 citations60
US10987154B2Apr 27, 2021
Electrosurgical generators and sensors
COVIDIEN LP0 citations60
US11969201B2Apr 30, 2024
Control systems for electrosurgical generator
COVIDIEN LP0 citations59
US12049706B2Jul 30, 2024
Thermal cutting elements, electrosurgical instruments including thermal cutting elements, and methods of manufacturing
COVIDIEN LP0 citations56
US11365490B2Jun 21, 2022
Thermal cutting elements, electrosurgical instruments including thermal cutting elements, and methods of manufacturing
COVIDIEN LP0 citations56
US10507054B2Dec 17, 2019
System and method for detecting and supressing arc formation during an electrosurgical procedure
COVIDIEN LP0 citations52
US10390876B2Aug 27, 2019
Planar transformers having reduced termination losses
COVIDIEN LP0 citations52
US9522041B2Dec 20, 2016
Current-fed push-pull converter with passive voltage clamp
COVIDIEN LP0 citations52
US9196414B2Nov 24, 2015
Planar transformers having reduced termination losses
COVIDIEN LP0 citations52
US10292753B2May 21, 2019
Electrosurgical generators and sensors
COVIDIEN LP0 citations50
US10278764B2May 7, 2019
Electrosurgical generators and sensors
COVIDIEN LP0 citations39
US10281496B2May 7, 2019
Electrosurgical generators and sensors
COVIDIEN LP0 citations39
UNITED TECHNOLOGIES CORP
4 patentsUS5303142AApr 12, 1994
Control system for gas turbine helicopter engines and the like
UNITED TECHNOLOGIES CORP47 citations94
US5189620AFeb 23, 1993
Control system for gas turbine helicopter engines and the like
UNITED TECHNOLOGIES CORP78 citations94
US5046923ASep 10, 1991
Helicopter autorotation detection and recovery
UNITED TECHNOLOGIES CORP37 citations92
US4817046AMar 28, 1989
Detection of engine failure in a multi-engine aircraft
UNITED TECHNOLOGIES CORP23 citations81