Inventor · disambiguated record
Kaj Ullen
Also filed as: ULLEN KAJ · ULLÉN KAJ
7 granted patents·3 pending applications·8 citations·filing 2008–2012
75Inventor score
Top patents by PatentIndex Score
10 records- 0167US8326255B2Biasing arrangement, electronic apparatus, biasing method, and computer programULLEN KAJ·Filed 2008·Granted Dec 4, 2012·5 cites·34 claims
- 0261US9407256B2Reducing a disturbance on a signal path of a semiconductor switchKÖRNER PETER·Filed 2011·Granted Aug 2, 2016·2 cites·17 claims
- 0354US7800443B2Circuit arrangement for providing an analog signal, and electronic apparatusSONY ERICSSON MOBILE COMM AB·Filed 2008·Granted Sep 21, 2010·1 cites·8 claims
- 0446US2009325633A1Method for reducing a disturbance in an output signal caused by a disturbing signal in a multiport connector, multiport connector circuit, and mobile deviceSONY ERICSSON MOBILE COMM AB·Filed 2008·Application pending·0 cites
- 0544US8666091B2Method for reducing a disturbance in an input signal caused by an output signal in a multi-port connector, multi-port connector, and mobile deviceULLEN KAJ·Filed 2008·Granted Mar 4, 2014·0 cites·21 claims
- 0640US9077342B2Circuit assembly for processing an electrical signal of a microphoneBIRCH MAGNUS·Filed 2011·Granted Jul 7, 2015·0 cites·12 claims
- 0739US2013156238A1Adaptive crosstalk rejectionSONY MOBILE COMM AB·Filed 2012·Application pending·0 cites
- 0835US2010007407A1Circuit for generating a negative voltage supply signal, and associated power supply device and portable electronic apparatusSONY ERICSSON MOBILE COMM AB·Filed 2008·Application pending·0 cites
- 0930US8818542B2Method and device for reducing interference in an audio signal during a callSTRANDH JONNY·Filed 2011·Granted Aug 26, 2014·0 cites·19 claims
- 1029US8421651B2Mobile phone with improved keyboard scanning and component reduction and methodBIRCH MAGNUS·Filed 2009·Granted Apr 16, 2013·0 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Kaj Ullen files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →