Inventor

PERKMANN MICHAEL

AT8 patents

⚠️ This page may combine multiple inventors who share the name “PERKMANN MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONOS INC

2 patents

US11528551B2Dec 13, 2022

Acoustic filters for microphone noise mitigation and transducer venting

SONOS INC2 citations70

US12003915B2Jun 4, 2024

Acoustic filters for microphone noise mitigation and transducer venting

SONOS INC0 citations59

AKG ACOUSTICS GMBH

2 patents

US10477312B2Nov 12, 2019

Earphone with active suppression of ambient noise

AKG ACOUSTICS GMBH0 citations48

US9456269B2Sep 27, 2016

Plug earphone or a concha earphone

AKG ACOUSTICS GMBH0 citations32

AUSTRIAN AUDIO GMBH

2 patents

US11115749B2Sep 7, 2021

In-ear active noise-cancelling earphone

AUSTRIAN AUDIO GMBH0 citations41

US11587543B2Feb 21, 2023

Calibration of active noise-cancelling headphones

AUSTRIAN AUDIO GMBH0 citations39

CHRISTOPH MARKUS

1 patent

US8903101B2Dec 2, 2014

Active noise reduction system

CHRISTOPH MARKUS15 citations82

PERKMANN MICHAEL

1 patent

US9613612B2Apr 4, 2017

Noise reducing sound reproduction system

PERKMANN MICHAEL10 citations75