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Vaerlose, Denmark

Topholm & Westermann Aps

USPTO Granted Patents = 17

Forward Citations = 611

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13 inventors (with patents filed for the assignee):

Jan Topholm (5 out of 14 patents)

Carl Ludvigsen (3 out of 11 patents)

Henning Haugaard Andersen (2 out of 9 patents)

4. Soren E Westermann (2 out of 2 patents)

5. Svend Vitting Andersen (1 out of 22 patents)

6. Jorgen Mejner Olsen (1 out of 8 patents)

7. Thilo Thiede (1 out of 2 patents)

8. Thomas Kaulberg (1 out of 2 patents)

9. Lars Baekgaard (1 out of 2 patents)

10. Jørgen Mejner Olsen (1 out of 2 patents)

11. Henning Hougaard Andersen (1 out of 1 patent)

12. Jan To Slashedpholm (1 out of 2 patents)

13. Christian Topholm (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 6898293 - Hearing aid (2005-05-24),

2. 6816599 - Ear level device for synthesizing music (2004-11-09),

3. 6430296 - Compact modular in-the-ear hearing aid (2002-08-06),

4. 6339647 - Hearing aid with beam forming properties (2002-01-15),

5. 6272229 - Hearing aid with adaptive matching of microphones (2001-08-07),

6. 5995636 - Hearing aid (1999-11-30),

7. 5687241 - Circuit arrangement for automatic gain control of hearing aids (1997-11-11),

8. 5578963 - Integrated amplifier with flat gain for high and low impedance loads (1996-11-26),

9. 5487012 - Method of preparing an otoplasty or adaptive earpiece individually (1996-01-23),

10. 5325872 - Tinnitus masker (1994-07-05),

11. 5300904 - Circuit arrangement for the tank circuit of a high-frequency transmitter (1994-04-05),

12. 5202927 - Remote-controllable, programmable, hearing aid system (1993-04-13),

13. 5105904 - Cerumen trap for hearing aids (1992-04-21),

14. 4947432 - Programmable hearing aid (1990-08-07),

15. 4800636 - Process for manufacturing an in-the-ear canal hearing aid (1989-01-31),

Topholm & Westermann Aps is a leading consulting firm specializing in business development and strategic planning. With a team of experienced professionals, we help businesses achieve sustainable growth and success through innovative strategies and personalized solutions. Our services include market research, financial analysis, and implementation support. Visit our website to learn more about how we can help your business thrive.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

17 Patents

#1 in Vaerlose

#166 in Denmark

#34,819 in the World

Vaerlose, Denmark

Topholm & Westermann Aps

Forward Citations = 611

13 inventors:

Jan Topholm (5 out of 14 patents)

Carl Ludvigsen (3 out of 11 patents)

Henning Haugaard Andersen (2 out of 9 patents)

4. Soren E Westermann (2 out of 2 patents)

5. Svend Vitting Andersen (1 out of 22 patents)

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