For the Inventor, By the Inventor

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Munich, Germany

Dehn Se

USPTO Granted Patents = 37

EPO Patents = 50

Trademarks = 14

Forward Citations = 16

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54 inventors (with patents filed for the assignee):

Julius Maria Schrafl (14 out of 16 patents)

Florian Gäck (14 out of 14 patents)

Michael Hess (13 out of 14 patents)

4. Arnd Ehrhardt (6 out of 20 patents)

5. Richard Daum (5 out of 9 patents)

6. Georg Wittmann (4 out of 17 patents)

7. Peter Zahlmann (4 out of 16 patents)

8. Ralph Brocke (4 out of 10 patents)

9. Sebastian Haas (4 out of 5 patents)

10. Uwe Strangfeld (4 out of 10 patents)

11. Edmund Zäuner (3 out of 13 patents)

12. Thomas Böhm (2 out of 8 patents)

13. Franz Schork (2 out of 7 patents)

14. Klaus Bühler (2 out of 6 patents)

15. Helmut Hirschmann (2 out of 7 patents)

37 patents: Sort by Forward Citations

1. 12726011 - Assembly for potential equalization in potentially explosive areas (2026-09-01),

2. 12667147 - Arc flash protection glove (2026-06-30),

3. 12646931 - Surge arrester for DC mains and method of operating such a surge arrester (2026-06-02),

4. 12567285 - Method for the automatic monitoring of an electrotechnical work flow, and corresponding device (2026-03-03),

5. 12470059 - Overvoltage protection device and use of an overvoltage protection device (2025-11-11),

6. 12438355 - Overvoltage protection spark gap assembly and method for operating an overvoltage protection spark gap assembly (2025-10-07),

7. 12316049 - Pluggable device combination for protecting against surges (2025-05-27),

8. 12264786 - Delimiting unit, pipeline system and method for operating a pipeline system (2025-04-01),

9. 12218490 - Lightning-protection spark gap (2025-02-04),

10. 12199423 - Asymmetric overvoltage protection apparatus, DC circuit arrangement and DC network (2025-01-14),

11. 12191600 - Plug-in module for a rail-mounted device, and rail-mounted device (2025-01-07),

12. 12184022 - Connection head piece for contacting an insulated discharge line in external lightning protection (2024-12-31),

13. 12057283 - Overvoltage protection arrangement with a horn spark gap, located in a housing, with a chamber for arc quenching (2024-08-06),

14. 12015249 - Arrangement for firing spark gaps (2024-06-18),

15. 11876334 - Device for protecting electrical networks from overvoltages or overcurrents (2024-01-16),

DEHN SE is a globally active family-owned company based in Neumarkt in der Oberpfalz, Germany. The company offers products and solutions for surge protection, lightning protection, and safety equipment. With over 100 years of experience, DEHN SE is a market leader in the field and is committed to providing innovative and reliable solutions for their customers.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

37 Patents

#90 in Munich

#1,366 in Germany

#18,238 in the World

Munich, Germany

Dehn Se

Forward Citations = 16

54 inventors:

Julius Maria Schrafl (14 out of 16 patents)

Florian Gäck (14 out of 14 patents)

Michael Hess (13 out of 14 patents)

4. Arnd Ehrhardt (6 out of 20 patents)

5. Richard Daum (5 out of 9 patents)

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