Inventor

Henricus Cornelis Johannes Buthker

Inventor

Mierlo, NL

Overview

31→

Patents

1993–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 31 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H02Mprimary

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems22%

H05BElectric heating16%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters12%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications9%

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general7%

G01RMeasuring electric variables5%

G05FSystems for regulating electric or magnetic variables5%

H02JElectric power networks3%

H03KPulse technique3%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%

PatentTitleYear

11,047,919Open wire detection system and method therefor2021 10,871,526Apparatus and method for detecting faulty charge pump capacitor2020 10,333,402Apparatus comprising multiple power converters with real or artifical hysteresis2019 10,181,849Transistor control terminal control circuit2019 10,164,475Wireless power receiver2018 10,014,766Mains power converter, a controller therefor, and methods of operating the same2018 9,974,132Circuits, controllers and methods for controlling LED strings or circuits2018 9,967,946Overshoot protection circuit for LED lighting2018 9,900,950'Adjusted pulse width modulation (PWM) curve calculations for improved accuracy'2018 9,894,733'Standalone light emitting diode (LED) controller'2018 9,820,345'LED controller'2017 9,769,898'Adjusted pulse width modulation (PWM) curve calculations for improved accuracy'2017 9,673,657'Battery charging apparatus and approach'2017 9,608,514'Diode circuit and power factor correction boost converter using the same'2017 9,543,830'Sense current measurement in switch mode power converters'2017 9,116,533'Cascoded semiconductor devices with gate bias circuit'2015 9,118,246'Control system for multi output DCDC converter'2015 9,112,443'Current controlled actuator driver with improved accuracy at low current'2015 8,664,797'Photovoltaic assembly and method of operating a photovoltaic assembly'2014 8,552,705'Lower power controller for DC to DC converters'2013 8,072,195'Voltage converter'2011 7,583,066'Method of operating a DC/DC up/down converter'2009 6,479,955'Method of energizing a polyphase motor having an increased energy efficiency'2002 6,265,841'Device for driving a multi-phase d.c. motor'2001 5,990,641'Motor control device apparatus for the recording and/or reproduction of information including the motor control device'1999 5,949,203'Arrangement for generating drive signals for a multi-phase d.c. motor, lock detector, drive arrangement and disk drive'1999 5,892,355'Current and voltage-sensing'1999 5,859,512'Drive circuit supplying drive signals to a plurality of windings of a multi-phase d.c. motor'1999 5,780,986'Soft switching, PWM controller and method for reducing torque ripple in multiphase DC motor'1998 5,418,702'Switch mode power supply with BJT/MOSFET cascode circuit'1995 5,272,613'Cascaded rectifier and two switched voltage converter circuits with harmonics suppression'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2001Patents assigned to PHILIPS CORP (6)· patent assignee history

1993–2018Based in Eindhoven, NL· patent location history

1998–2021Based in Mierlo, NL· patent location history

1999Based in Eindhover, NL· patent location history

2009–2021Patents assigned to NXP BV (20)· patent assignee history

2011–2015Patents assigned to BUTHKER HENRICUS CORNELIS JOHANNES (5)· patent assignee history

2011–2013Patents assigned to ST ERICSSON SA (2)· patent assignee history

2011Patents assigned to AAN DE STEGGE DENNIS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NXP BV	20	2009–2021
PHILIPS CORP	6	1993–2001
BUTHKER HENRICUS CORNELIS JOHANNESself	5	2011–2015
ST ERICSSON SA	2	2011–2013
AAN DE STEGGE DENNIS	1	2011

Locations

Location	Patents	Span
Mierlo, NL	19	1998–2021
Eindhoven, NL	11	1993–2018
Eindhover, NL	1	1999