Inventor
FRIEDRICHS DANIEL A
US31 patents
Patents
31 patentsUS9839470B2Dec 12, 2017
Electrosurgical generator for minimizing neuromuscular stimulation
COVIDIEN LP248 citations99
US10363084B2Jul 30, 2019
Interdigitation of waveforms for dual-output electrosurgical generators
COVIDIEN LP107 citations97
US10582962B2Mar 10, 2020
System and method for harmonic control of dual-output generators
COVIDIEN LP76 citations94
US10237962B2Mar 19, 2019
Variable frequency excitation plasma device for thermal and non-thermal tissue effects
COVIDIEN LP6 citations84
US11179191B2Nov 23, 2021
Electrosurgical instrument with end-effector assembly including electrically-conductive, tissue-engaging surfaces and switchable bipolar electrodes
COVIDIEN LP1 citations73
US10614949B2Apr 7, 2020
Electrostatic shielding of planar magnetic devices of electrosurgical generators
COVIDIEN LP3 citations73
US10188448B2Jan 29, 2019
Electrosurgical system for multi-frequency interrogation of parasitic parameters of an electrosurgical instrument
COVIDIEN LP3 citations73
US11589889B2Feb 28, 2023
Surgical instruments incorporating ultrasonic and electrosurgical functionality
COVIDIEN LP2 citations71
US10159523B2Dec 25, 2018
Bipolar plasma catheter
COVIDIEN LP3 citations71
US11096737B2Aug 24, 2021
System and method for harmonic control of dual-output generators
COVIDIEN LP2 citations70
US10869712B2Dec 22, 2020
System and method for high frequency leakage reduction through selective harmonic elimination in electrosurgical generators
COVIDIEN LP3 citations70
US10086217B2Oct 2, 2018
Electrosurgical ultrasonic vessel sealing and dissecting system
COVIDIEN LP4 citations70
US10278685B2May 7, 2019
Electrospinning device and method for applying polymer to tissue
COVIDIEN LP2 citations64
US12426936B2Sep 30, 2025
Ultrasonic and radiofrequency energy production and control from a single power converter
COVIDIEN LP0 citations62
US11648026B2May 16, 2023
Devices, systems, and methods for cooling a surgical instrument
COVIDIEN LP0 citations62
US11090105B2Aug 17, 2021
Ancillary circuit to induce zero voltage switching in a power converter
COVIDIEN LP0 citations62
US11006997B2May 18, 2021
Ultrasonic and radiofrequency energy production and control from a single power converter
COVIDIEN LP0 citations62
US10973565B2Apr 13, 2021
Interdigitation of waveforms for dual-output electrosurgical generators
COVIDIEN LP0 citations62
US10646266B2May 12, 2020
System and method for return electrode monitoring
COVIDIEN LP1 citations62
US10898255B2Jan 26, 2021
Bipolar plasma catheter
COVIDIEN LP0 citations61
US12127761B2Oct 29, 2024
Surgical instruments incorporating ultrasonic and electrosurgical functionality
COVIDIEN LP0 citations60
US11864814B2Jan 9, 2024
System and method for harmonic control of dual-output generators
COVIDIEN LP0 citations59
US11596978B2Mar 7, 2023
Electrosurgical ultrasonic vessel sealing and dissecting system
COVIDIEN LP0 citations59
US10750605B2Aug 18, 2020
Variable frequency excitation plasma device for thermal and non-thermal tissue effects
COVIDIEN LP0 citations52
US10646246B2May 12, 2020
Devices, systems, and methods for cooling a surgical instrument
COVIDIEN LP0 citations52
US10568680B2Feb 25, 2020
Electrosurgical system for multi-frequency interrogation of parasitic parameters of an electrosurgical instrument
COVIDIEN LP0 citations52
US10537378B2Jan 21, 2020
Variable active clipper circuit to control crest factor in an AC power converter
COVIDIEN LP0 citations52
US10537377B2Jan 21, 2020
Electrosurgical generator with half-cycle power regulation
COVIDIEN LP0 citations52
US10492848B2Dec 3, 2019
Ancillary circuit to induce zero voltage switching in a power converter
COVIDIEN LP0 citations52
US10123460B2Nov 6, 2018
System and method for thermal management of electronic devices
COVIDIEN LP1 citations52
US10349968B2Jul 16, 2019
Devices, systems, and methods for establishing electrical and fluid connections to surgical instruments
COVIDIEN LP0 citations41