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Neumarkt/Opf, Germany

Dehn + Söhne Gmbh + Co Kg

Calculating rank

USPTO Granted Patents = 36

% Expired Patents = 58.3

EPO Patents = 89

Trademarks = 4

Forward Citations = 148

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42 inventors (with patents filed for the assignee):

Arnd Ehrhardt (10 out of 20 patents)

Georg Wittmann (9 out of 17 patents)

Stefanie Schreiter (9 out of 9 patents)

4. Edmund Zäuner (7 out of 13 patents)

5. Stephan Hierl (7 out of 12 patents)

6. Peter Zahlmann (5 out of 16 patents)

7. Uwe Strangfeld (5 out of 10 patents)

8. Bernhard Krauss (5 out of 9 patents)

9. Michael Waffler (5 out of 8 patents)

10. Helmut Hirschmann (4 out of 7 patents)

11. Jens Ehrler (4 out of 6 patents)

12. Richard Daum (4 out of 9 patents)

13. Peter Hasse (4 out of 7 patents)

14. Johannes Wiesinger (4 out of 5 patents)

15. Sascha Ludewig (3 out of 5 patents)

Core Competencies:

Surge Protection

Overvoltage Protection

Thermal Disconnection

Spark Gap

Lightning Arrestor

Short-Circuit Device

Circuit Assembly

Defect Indicator

Power Connector

Arrester

Thermal Isolation

Surge Arrestor

36 patents: Sort by Forward Citations

1. 10529523 - Short-circuiting device for use in low-voltage and medium-voltage systems for protecting parts and personnel (2020-01-07),

2. 10511165 - Circuit assembly for protecting a unit to be operated from a supply network against overvoltage (2019-12-17),

3. 10256062 - Device for thermally tripping or disconnecting an overvoltage protection device (2019-04-09),

4. 10049795 - Surge protection device, comprising at least one surge arrester and one thermally trippable switching device connected in series with the surge arrester (2018-08-14),

5. 10014098 - Surge protection device, comprising at least one surge arrester and one short-circuit switching device which is connected in parallel with the surge arrester, can be thermally tripped and is spring-pretensioned (2018-07-03),

6. 9941691 - Arrangement for overload protection for overvoltage protection equipment (2018-04-10),

7. 9885738 - Circuit assembly for the state monitoring and logging of overvoltage protection devices or overvoltage protection systems (2018-02-06),

8. 9871368 - Encapsulated surge protection device capable of carrying lightning currents and limiting follow currents and comprising at least one spark gap (2018-01-16),

9. 9780553 - Overvoltage protection device with short-circuit function for protecting installations and persons (2017-10-03),

10. 9780463 - Surge protection device with at least one surge protection unit (2017-10-03),

11. 9691560 - Single- or multi-pole switching device, in particular for DC applications (2017-06-27),

12. 9660437 - Arrangement for forming a thermal isolation point (2017-05-23),

13. 9640352 - Overvoltage protection device having a thermal disconnection apparatus (2017-05-02),

14. 9601986 - Method and arrangement for the surge protection of inverters for photovoltaic systems (2017-03-21),

15. 9461461 - Defect indicator for an electronic device, in particular surge arrester (2016-10-04),

Company Overview

Dehn + Söhne GmbH + Co KG, headquartered in Neumarkt/Opf, Germany, specializes in surge protection, lightning protection, and grounding systems. The company develops innovative solutions to safeguard electrical installations and infrastructure from transient overvoltages and lightning strikes. With a strong focus on research and technology, Dehn + Söhne serves various sectors, including construction, telecommunications, and renewable energy, ensuring safety and reliability in electrical systems across diverse geographic regions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

36 Patents

#28 in 92318 Neumarkt/Opf

#1,400 in Germany

#18,762 in the World

Neumarkt/Opf, Germany

Dehn + Söhne Gmbh + Co Kg

Forward Citations = 148

42 inventors:

Arnd Ehrhardt (10 out of 20 patents)

Georg Wittmann (9 out of 17 patents)

Stefanie Schreiter (9 out of 9 patents)

4. Edmund Zäuner (7 out of 13 patents)

5. Stephan Hierl (7 out of 12 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dehn + Söhne Gmbh + Co Kg. Retrieved from https://idiyas.com/company/dehn-plus-sohne-plus-co-kg

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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