Inventor · disambiguated record
Johan Hellgren
Also filed as: HELLGREN JOHAN
13 granted patents·57 citations·filing 1991–2019
89Inventor score
Top patents by PatentIndex Score
13 records- 0190US10309943B2Infrared gas detector with secondary sensorINFICON GMBH·Filed 2016·Granted Jun 4, 2019·5 cites·2 claims
- 0279US10866225B2Wide range gas detection using an infrared gas detectorINFICON HOLDING AG·Filed 2017·Granted Dec 15, 2020·3 cites·9 claims
- 0379US8477952B2Audio system with feedback detection meansELMEDYB THOMAS BO·Filed 2011·Granted Jul 2, 2013·6 cites·20 claims
- 0478US7688990B2Hearing aid with anti feedback systemOTICON AS·Filed 2005·Granted Mar 30, 2010·15 cites·18 claims
- 0575US8538052B2Generation of probe noise in a feedback cancellation systemELMEDYB THOMAS BO·Filed 2008·Granted Sep 17, 2013·7 cites·27 claims
- 0675US7925031B2Audio system with feedback detection meansOTICON AS·Filed 2006·Granted Apr 12, 2011·5 cites·16 claims
- 0770US8687832B2Hearing aid system with feedback arrangement to predict and cancel acoustic feedback, method and useELMEDYB THOMAS BO·Filed 2008·Granted Apr 1, 2014·5 cites·12 claims
- 0868US9338562B2Listening system with an improved feedback cancellation system, a method and useOTICON AS·Filed 2014·Granted May 10, 2016·2 cites·18 claims
- 0955US8798297B2Listening system with an improved feedback cancellation system, a method and useELMEDYB THOMAS BO·Filed 2009·Granted Aug 5, 2014·0 cites·14 claims
- 1052US11982651B2Method for adapting the concentration of a sample gas in a gas mixture to be analysed by a gas chromatograph assembly, and chromatograph assembly thereforeINFICON GMBH·Filed 2019·Granted May 14, 2024·0 cites·10 claims
- 1151US10352848B2Gas detection using gas modulationINFICON GMBH·Filed 2016·Granted Jul 16, 2019·0 cites·12 claims
- 1247US10436708B2Method for quantifying the amount of optically interfering gas impuritiesINFICON GMBH·Filed 2017·Granted Oct 8, 2019·0 cites·10 claims
- 1346US5436859AMethod to reduce the power consumation of a digital filter bank analyzer reducing the number of multiplicationsFiled 1991·Granted Jul 25, 1995·9 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →