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Inventor

Hendrik Visser

Inventor
Wijchen, NL

Overview

20→
Patents
1998–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 20 as inventor

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

H04Bprimary
H04BTransmission16%
H03FAmplifiers14%
H03HImpedance networks, e.g. resonant circuits12%
H01QAntennas, i.e. radio aerials10%
H01FMagnets8%
H01PWaveguides6%
H10DInorganic electric semiconductor devices6%
H03CModulation4%
G01RMeasuring electric variables2%
G05FSystems for regulating electric or magnetic variables2%
PatentTitleYear
11,005,173ESD protection for antenna port202110,615,777On-chip balun circuit and multi-port antenna switch circuit202010,560,053Digital fractional frequency divider202010,270,427On-chip balun circuit and multi-port antenna switch circuit20199,240,919'Polar modulator'20168,958,761'Determining on chip loading impedance of RF circuit'20158,699,619'Dutycycle adjustment to improve efficiency of a digital RF-PA'20148,666,330'Antenna switch with ESD isolation'20148,554,158'Current saving by reduced modulation code and selective gating of RF signal'20138,427,388'Eight-shaped RF balun'20138,373,491'Switched current mirror with good matching'20138,339,203'PA load-line tuning with capacitors around a balun'20128,294,514'Calibrate output matching for correct output power'20127,623,979'Calibration of tester and testboard by golden sample'20096,577,219'Multiple-interleaved integrated circuit transformer'20036,545,539'Amplifier for use in a mobile phone'20036,396,124'Semiconductor device'20025,963,095'Amplifier circuit, a transmitter and a wireless telephone'19995,887,247'Radio transmission system and a radio apparatus for use therein'19995,751,249'Radio transmission system and a radio apparatus for use in such a system'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–1999Based in Eindhoven, NL· patent location history
2002–2003Patents assigned to KONINKL PHILIPS ELECTRONICS NV (3)· patent assignee history
2002–2003Based in Nijmegen, NL· patent location history
2003–2009Based in Milpitas, CA, US· patent location history
2012–2016Patents assigned to ST ERICSSON SA (7)· patent assignee history
2012–2014Patents assigned to VISSER HENDRIK (7)· patent assignee history
2012–2014Patents assigned to HEIJNA ROELAND (5)· patent assignee history
2012–2014Patents assigned to VAN DEN BOS NORBERT (5)· patent assignee history
2012–2021Based in Wijchen, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ST ERICSSON SA72012–2016
VISSER HENDRIKself72012–2014
HEIJNA ROELAND52012–2014
VAN DEN BOS NORBERT52012–2014
KONINKL PHILIPS ELECTRONICS NV32002–2003
Locations
LocationPatentsSpan
Wijchen, NL132012–2021
Eindhoven, NL31998–1999
Milpitas, California, US22003–2009
Nijmegen, NL22002–2003