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Ewald Frasl
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Beidermannsdorf, AT
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Patents Grants
last 30 patents
Information
Patent Grant
Vibration membrane assembly for speaker, speaker and method for pro...
Patent number
9,769,583
Issue date
Sep 19, 2017
Sound Solutions International Co., Ltd.
Gary Hsieh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker
Patent number
8,892,174
Issue date
Nov 18, 2014
Knowles IPC (M) Sdn. Bhd.
Mathias Weber
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of and device for modifying the properties of a membrane for...
Patent number
8,628,830
Issue date
Jan 14, 2014
Knowles Electronics Asia PTE. Ltd.
Stefan Amon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Membrane for an acoustic device and acoustic device
Patent number
8,437,496
Issue date
May 7, 2013
Knowles Electronics Asia PTE. Ltd.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Compound membrane, method of manufacturing the same, and acoustic d...
Patent number
8,284,964
Issue date
Oct 9, 2012
Knowles Electronics Asia PTE. Ltd.
Susanne Windischberger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for manufacturing an electroacoustical transducer comprising...
Patent number
7,895,727
Issue date
Mar 1, 2011
NXP B.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Membrane with a high resistance against buckling and/or crinkling
Patent number
7,644,801
Issue date
Jan 12, 2010
NXP B.V.
Erich Klein
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Diaphragm for a loudspeaker with a moving coil
Patent number
7,416,047
Issue date
Aug 26, 2008
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer comprising a membrane with a middle area...
Patent number
7,306,073
Issue date
Dec 11, 2007
NXP B.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for manufacturing an electroacoustical transducer comprising...
Patent number
7,043,046
Issue date
May 9, 2006
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer having a moving coil and having movable...
Patent number
6,831,989
Issue date
Dec 14, 2004
Koninklijke Philips Electronics N.V.
Erich Klein
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for manufacturing an electroacoustical transducer comprising...
Patent number
6,799,361
Issue date
Oct 5, 2004
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer comprising a membrane with an improved p...
Patent number
6,697,496
Issue date
Feb 24, 2004
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer having a moving coil and elastic holding...
Patent number
6,526,152
Issue date
Feb 25, 2003
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer having diaphragm with coil mounting proj...
Patent number
6,510,232
Issue date
Jan 21, 2003
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus including an electroacoustic transducer having terminal c...
Patent number
6,370,257
Issue date
Apr 9, 2002
U.S. Philips Corporation
Peter Bleim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer comprising a diaphragm having through po...
Patent number
6,178,252
Issue date
Jan 23, 2001
U.S. Philips Corporation
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer having axially extending corrugated supp...
Patent number
6,075,866
Issue date
Jun 13, 2000
U.S. Philips Corporation
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer comprising spring contacts formed with a...
Patent number
6,072,886
Issue date
Jun 6, 2000
U.S. Philips Corporation
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer comprising a closing member for closing...
Patent number
6,038,327
Issue date
Mar 14, 2000
U.S. Philips Corporation
Peter Bleim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer comprising a closing member
Patent number
5,727,077
Issue date
Mar 10, 1998
U.S. Philips Corporation
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electroacoustic transducer having a partition wall and a mask wall
Patent number
5,303,209
Issue date
Apr 12, 1994
U.S. Philips Corporation
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
VIBRATION MEMBRANE ASSEMBLY FOR SPEAKER, SPEAKER AND METHOD FOR PRO...
Publication number
20160205487
Publication date
Jul 14, 2016
Knowles IPC (M) Snd. Bhd.
Gary Hsieh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER
Publication number
20130237291
Publication date
Sep 12, 2013
KNOWLES ELECTRONICS ASIA PTE. LTD.
Mathias Weber
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MEMBRANE FOR AN ACOUSTIC DEVICE AND ACOUSTIC DEVICE
Publication number
20100215209
Publication date
Aug 26, 2010
NXP B.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ACOUSTIC DEVICE AND METHOD OF MANUFACTURING THE SAME
Publication number
20100046773
Publication date
Feb 25, 2010
NXP, B.V.
Susanne Windischberger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMPOUND MEMBRANE, METHOD OF MANUFACTURING THE SAME, AND ACOUSTIC D...
Publication number
20100040246
Publication date
Feb 18, 2010
NXP, B.V.
Susanne Windischberger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Membrane with a High Resistance Against Buckling and/or Crinkling
Publication number
20080202845
Publication date
Aug 28, 2008
NXP B.V.
Erich Klein
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Diaphragm for a Loudspeaker with a Moving Coil
Publication number
20070209866
Publication date
Sep 13, 2007
Koninkljke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of and device for modifying the properties of a membrane for...
Publication number
20070178242
Publication date
Aug 2, 2007
Koninklijke Philips Electronics N.V.
Stefan Amon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electroacoustic transducer comprising a memberane with a middle are...
Publication number
20060070796
Publication date
Apr 6, 2006
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for manufacturing an electroacoustical transducer comprising...
Publication number
20050028348
Publication date
Feb 10, 2005
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electroacoustic transducer comprising a membrane with an improved p...
Publication number
20030112995
Publication date
Jun 19, 2003
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for manufacturing an electroacoustical transducer comprising...
Publication number
20020110257
Publication date
Aug 15, 2002
Koninklijke Philips Electronics N.V.
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electroacoustic transducer having diaphragm with coil mounting proj...
Publication number
20010010725
Publication date
Aug 2, 2001
U.S. PHILIPS CORPORATION
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electroacoustic transducer having a moving coil and having elastic...
Publication number
20010010728
Publication date
Aug 2, 2001
U.S. PHILIPS CORPORATION
Ewald Frasl
H04 - ELECTRIC COMMUNICATION TECHNIQUE