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For the Inventor, By the Inventor

Trossingen, Germany

Matth. Hohner Ag

Calculating rank
USPTO Granted Patents = 21

% Expired Patents = 9.5

Trademarks = 2

Forward Citations = 82

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14 inventors (with patents filed for the assignee):

goldMedal Christian J Deforeit (5 out of 6 patents)

silverMedal Ernst Zacharias (4 out of 4 patents)

bronzeMedal Christian J Deforeit (3 out of 9 patents)

4.  Arthur Chuang (1 out of 1 patent)

5.  The Hai Nguyen (1 out of 1 patent)

6.  Paul Thevis (1 out of 5 patents)

7.  Martin Ehler (1 out of 1 patent)

8.  Werner Sonnabend (1 out of 1 patent)

9.  Waldemar Schaller (1 out of 1 patent)

10.  Hans-Dieter Held (1 out of 1 patent)

11.  George M Mancini (1 out of 1 patent)

12.  Rudolph A Huber (1 out of 1 patent)

13.  Siegfried Eppinger (1 out of 1 patent)

14.  The-Hai Nguyen (1 out of 1 patent)


21 patents:

1. 7973229 - Comb (2011-07-05),
2. D633554 - Harp holder for a harmonica (2011-03-01),
3. 7531728 - Electric guitar (2009-05-12),
4. 5251517 - Harmonica construction (1993-10-12),
5. 4765218 - Electronic keyboard musical instrument with processing of depression (1988-08-23),
6. 4704938 - Mouth organ (1987-11-10),
7. 4628790 - Circuit for an electronic musical instrument (1986-12-16),
8. 4616547 - Improviser circuit and technique for electronic musical instrument (1986-10-14),
9. 4587877 - Key board system for an electronic musical instrument (1986-05-13),
10. 4520706 - Electronic musical instrument (1985-06-04),
11. 4502362 - Mouth organ (1985-03-05),
12. 4500317 - Method of and apparatus for producing an orchestra effect (1985-02-19),
13. 4484180 - Switch condition indicator (1984-11-20),
14. 4422363 - Method for digitally controlling the envelope curve in a polyphonic (1983-12-27),
15. 4404884 - Stringed instrument with keyboard, of the clavichord type (1983-09-20),
Company Overview
Matth. Hohner AG, headquartered in Trossingen, Germany, is a renowned manufacturer specializing in musical instruments, particularly harmonicas and accordions. The company has a rich heritage in crafting high-quality instruments that cater to both amateur and professional musicians. Hohner is committed to innovation in sound technology and design, ensuring that its products meet the evolving needs of musicians worldwide. With a focus on craftsmanship and musical tradition, Hohner continues to play a significant role in the global music industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

21 Patents

#1 in Trossingen

#2,133 in Germany

#30,001 in the World

Trossingen, DE
Trossingen, Germany

Matth. Hohner Ag

Forward Citations = 82

14 inventors:

goldMedal Christian J Deforeit (5 out of 6 patents)

silverMedal Ernst Zacharias (4 out of 4 patents)

bronzeMedal Christian J Deforeit (3 out of 9 patents)

4.  Arthur Chuang (1 out of 1 patent)

5.  The Hai Nguyen (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Matth. Hohner Ag. Retrieved from https://idiyas.com/company/matth-hohner-ag

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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