Inventor
GRELL AXEL
DE18 patents
⚠️ This page may combine multiple inventors who share the name “GRELL AXEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SENNHEISER ELECTRONIC
6 patentsUS7292703B2Nov 6, 2007
Headphones
SENNHEISER ELECTRONIC21 citations88
US9247337B2Jan 26, 2016
Headphone and headset
SENNHEISER ELECTRONIC9 citations82
US7639832B2Dec 29, 2009
Headphones
SENNHEISER ELECTRONIC11 citations81
US7940947B2May 10, 2011
Headphone set
SENNHEISER ELECTRONIC7 citations80
US7162051B2Jan 9, 2007
Headphone
SENNHEISER ELECTRONIC8 citations69
US8363874B2Jan 29, 2013
Receiver
SENNHEISER ELECTRONIC1 citations45
SENNHEISER ELECTRONIC GMBH & CO KG
5 patentsUS10178465B2Jan 8, 2019
Headphone unit
SENNHEISER ELECTRONIC GMBH & CO KG7 citations80
US9918179B2Mar 13, 2018
Methods and devices for reproducing surround audio signals
SENNHEISER ELECTRONIC GMBH & CO KG9 citations80
US9635484B2Apr 25, 2017
Methods and devices for reproducing surround audio signals
SENNHEISER ELECTRONIC GMBH & CO KG5 citations80
US10128806B2Nov 13, 2018
Method of controlling an audio amplifier unit and audio amplifier unit
SENNHEISER ELECTRONIC GMBH & CO KG0 citations40
US10477293B2Nov 12, 2019
Headphone
SENNHEISER ELECTRONIC GMBH & CO KG0 citations37