Assignee
SAPIEJEWSKI ROMAN
US·7 granted patents·1 pending application·160 citations·filing 1987–2013
Top patents by PatentIndex Score
8 records- 0193US4922542AHeadphone comfortSAPIEJEWSKI ROMAN·Filed 1987·Granted May 1, 1990·95 cites·14 claims
- 0290US8111858B2Supra-aural headphone noise reducingSAPIEJEWSKI ROMAN·Filed 2009·Granted Feb 7, 2012·19 cites·10 claims
- 0387US9762990B2Headset portingSAPIEJEWSKI ROMAN·Filed 2013·Granted Sep 12, 2017·11 cites·20 claims
- 0487US8467539B2High transmission loss cushionSAPIEJEWSKI ROMAN·Filed 2011·Granted Jun 18, 2013·11 cites·19 claims
- 0586US8077874B2Active noise reduction microphone placingSAPIEJEWSKI ROMAN·Filed 2006·Granted Dec 13, 2011·15 cites·8 claims
- 0681US8571228B2Feedforward ANR device acousticsSAPIEJEWSKI ROMAN·Filed 2010·Granted Oct 29, 2013·6 cites·19 claims
- 0775USRE45151EHeadset noise reducingSAPIEJEWSKI ROMAN·Filed 2011·Granted Sep 23, 2014·3 cites·8 claims
- 0849US2006269090A1Supra-aural headphone noise reducingSAPIEJEWSKI ROMAN·Filed 2005·Application pending·0 cites
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