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For the Inventor, By the Inventor

Pforzheim, Germany

Doduco Kg. Dr. Eugen Durrwachter

Calculating rank
USPTO Granted Patents = 9

Forward Citations = 58

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14 inventors (with patents filed for the assignee):

goldMedal Norbert Normann (4 out of 4 patents)

silverMedal Roland Michal (3 out of 9 patents)

bronzeMedal Erwin Gross (2 out of 2 patents)

4.  Harald Schlager (2 out of 2 patents)

5.  Bruno Gengenbach (2 out of 3 patents)

6.  Jens Radbruch (2 out of 2 patents)

7.  Dieter Ksinsik (1 out of 2 patents)

8.  Malte Berndt (1 out of 2 patents)

9.  Ursula Mayer (1 out of 2 patents)

10.  Hans-Jurgen Gevatter (1 out of 1 patent)

11.  Bernhard Muller (1 out of 1 patent)

12.  Hans-Joachim Neese (1 out of 1 patent)

13.  Carl-Ludwig Meyer (1 out of 1 patent)

14.  Ferenc Remenyi (1 out of 1 patent)


9 patents:

1. 4965689 - Thin, Planar shaped carrier with wiegand wires (1990-10-23),
2. 4862303 - Magnetic instrument for reading telegraphic signals (1989-08-29),
3. 4778958 - Material for electric contacts having arc-quenching properties (1988-10-18),
4. 4644118 - Electric power circuit breaker (1987-02-17),
5. 4639670 - Magnetic field sensor comprising Wiegand wires or similar bistable (1987-01-27),
6. 4635227 - Reading head for the magnetic scanning of elongate bistable magnetic (1987-01-06),
7. 4624941 - Process of manufacturing a catalyst for purifying the exhaust gases from (1986-11-25),
8. 4594489 - Electrical switching element (1986-06-10),
9. 4521257 - Process of manufacturing strip coated with precious metal as a (1985-06-04),
Company Overview
Doduco Kg. Dr. Eugen Durrwachter is a leading manufacturer of electrical contact materials and precision stamped parts for various industries. With over 60 years of experience, Doduco has established a reputation for high-quality products and innovative solutions. The company prides itself on providing custom solutions to meet the unique needs of each customer, and is committed to delivering superior products and services.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

9 Patents

#12 in Pforzheim

#4,079 in Germany

Pforzheim, DE
Pforzheim, Germany

Doduco Kg. Dr. Eugen Durrwachter

Forward Citations = 58

14 inventors:

goldMedal Norbert Normann (4 out of 4 patents)

silverMedal Roland Michal (3 out of 9 patents)

bronzeMedal Erwin Gross (2 out of 2 patents)

4.  Harald Schlager (2 out of 2 patents)

5.  Bruno Gengenbach (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Doduco Kg. Dr. Eugen Durrwachter. Retrieved from https://idiyas.com/company/doduco-kg-dr-eugen-durrwachter

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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