P

Inventor

DONALDSON MARK

NZ13 patents
⚠️ This page may combine multiple inventors who share the name “DONALDSON MARK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SOUNDCHIP SA

4 patents
US9877099B2Jan 23, 2018

Media/communications system

SOUNDCHIP SA3 citations71
US10714071B2Jul 14, 2020

Active noise reduction device

SOUNDCHIP SA0 citations50
US10249282B2Apr 2, 2019

Active noise reduction device

SOUNDCHIP SA0 citations50
US10313780B2Jun 4, 2019

Earphone connection apparatus

SOUNDCHIP SA0 citations32

DONALDSON MARK

3 patents
US8571227B2Oct 29, 2013

Noise cancellation earphone

DONALDSON MARK20 citations87
US8666085B2Mar 4, 2014

Component for noise reducing earphone

DONALDSON MARK27 citations86
US7489785B2Feb 10, 2009

Noise cancellation system and headphone therefor

DONALDSON MARK10 citations81

PHITEK SYSTEMS LTD

2 patents
US7270554B2Sep 18, 2007

Audio jack with plug or head set identification circuit

PHITEK SYSTEMS LTD12 citations81
USD563394SMar 4, 2008

Set of earphones

PHITEK SYSTEMS LTD10 citations77

SLAB DSP LTD

1 patent
US6988905B2Jan 24, 2006

Audio jack with plug or head set identification circuit

SLAB DSP LTD81 citations92

H K MARKETING LLC

1 patent
US6854229B2Feb 15, 2005

Form tie sleeves for composite action insulated concrete sandwich walls

H K MARKETING LLC25 citations88

PANASONIC AVIONICS CORP

1 patent
US9407982B2Aug 2, 2016

Media/communications system

PANASONIC AVIONICS CORP3 citations72

DARLINGTON PAUL

1 patent
US10720144B2Jul 21, 2020

Earphone test system

DARLINGTON PAUL2 citations68