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DK-3500 VAERLOSE, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Hearing aid
Patent number
6,898,293
Issue date
May 24, 2005
Topholm & Westermann APS
Thomas Kaulberg
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Ear level device for synthesizing music
Patent number
6,816,599
Issue date
Nov 9, 2004
Topholm & Westermann APS
Thilo Volker Thiede
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Hearing aid with a tightening ring
Patent number
6,748,093
Issue date
Jun 8, 2004
Topholm & Westermann APS
Jan Tøpholm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Compact modular in-the-ear hearing aid
Patent number
6,430,296
Issue date
Aug 6, 2002
Topholm & Westermann APS
Jørgen Mejner Olsen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Hearing aid with beam forming properties
Patent number
6,339,647
Issue date
Jan 15, 2002
Topholm & Westermann APS
Henning Hougaard Andersen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Hearing aid with adaptive matching of microphones
Patent number
6,272,229
Issue date
Aug 7, 2001
Topholm & Westermann APS
Lars Baekgaard
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Hearing aid
Patent number
5,995,636
Issue date
Nov 30, 1999
Topholm & Westermann ApS
Jan T.o slashed.pholm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit arrangement for automatic gain control of hearing aids
Patent number
5,687,241
Issue date
Nov 11, 1997
Topholm & Westermann ApS
Carl Ludvigsen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Integrated amplifier with flat gain for high and low impedance loads
Patent number
5,578,963
Issue date
Nov 26, 1996
Topholm & Westermann ApS
Henning H. Andersen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of preparing an otoplasty or adaptive earpiece individually...
Patent number
5,487,012
Issue date
Jan 23, 1996
Topholm & Westermann ApS
Jan Topholm
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Tinnitus masker
Patent number
5,325,872
Issue date
Jul 5, 1994
Topholm & Westermann ApS
Soren E. Westermann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit arrangement for the tank circuit of a high-frequency transm...
Patent number
5,300,904
Issue date
Apr 5, 1994
Topholm & Westermann ApS
Henning H. Andersen
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Remote-controllable, programmable, hearing aid system
Patent number
5,202,927
Issue date
Apr 13, 1993
Topholm & Westermann ApS
Jan Topholm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cerumen trap for hearing aids
Patent number
5,105,904
Issue date
Apr 21, 1992
Topholm & Westermann ApS
Jorgen M. Olsen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Programmable hearing aid
Patent number
4,947,432
Issue date
Aug 7, 1990
Topholm & Westermann ApS
Jan Topholm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Process for manufacturing an in-the-ear canal hearing aid
Patent number
4,800,636
Issue date
Jan 31, 1989
Topholm & Westermann ApS
Jan Topholm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
In-the-ear-canal hearing aid
Patent number
4,706,778
Issue date
Nov 17, 1987
Topholm & Westermann ApS
Jan Topholm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for use in the adjustment of the secondary adjustment mea...
Patent number
4,575,586
Issue date
Mar 11, 1986
Topholm & Westermann APS
Christian Topholm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Hearing aid with sudden sound alert
Publication number
20030007657
Publication date
Jan 9, 2003
TOPHOLM & WESTERMANN APS
Carl Ludvigsen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Hearing aid with a self-test capability
Publication number
20030007647
Publication date
Jan 9, 2003
TOPHOLM & WESTERMANN APS
Kim Hjortgaard Nielsen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Hearing aid with a capacitor having a large capacitance
Publication number
20020196956
Publication date
Dec 26, 2002
TOPHOLM & WESTERMANN APS
Henning Haugaard Andersen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Suppression of perceived occlusion
Publication number
20020150269
Publication date
Oct 17, 2002
TOPHOLM & WESTERMANN APS
Carl Ludvigsen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Hearing aid with adaptive matching of input transducers
Publication number
20020041696
Publication date
Apr 11, 2002
TOPHOLM & WESTERMANN APS
Lars Baekgaard Jensen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Trademark
last 30 trademarks