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EPO Patents = 68

Trademarks = 9

Forward Citations = 61

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61 inventors (with patents filed for the assignee):

Dieter Hackl (35 out of 36 patents)

Oliver Schaefer (19 out of 19 patents)

Eckhard Broeckmann (11 out of 11 patents)

4. Burkhard Macht (8 out of 8 patents)

5. Karl Schepp (8 out of 8 patents)

6. Wolfgang Hofheinz (7 out of 7 patents)

7. Winfried Moell (6 out of 8 patents)

8. Julian Reitz (5 out of 5 patents)

9. Pascal Becker (5 out of 5 patents)

10. Michael Kammer (4 out of 5 patents)

11. Mario Lehr (4 out of 4 patents)

12. Carsten Weiss (4 out of 4 patents)

13. Carsten Hartmann (4 out of 4 patents)

14. Frank Mehling (3 out of 3 patents)

15. Harald Sellner (3 out of 3 patents)

Core Competencies:

Insulation Monitoring

Electric Power Supply

Leakage Current Detection

Vehicle Charging Systems

Impedance Monitoring

Ground Fault Protection

Electric Circuit Arrangement

Energy Demand Management

Fault Localization

Differential Current Monitoring

Dielectric Equivalent Circuit

Photovoltaic Module Protection

82 patents: Sort by Forward Citations

1. 12399208 - Method and device for insulation monitoring of a water-electrolysis installation (2025-08-26),

2. 12385957 - Method for computing an insulation resistance in an ungrounded DC power supply system at a changeable DC line voltage (2025-08-12),

3. 12372570 - Method and electric circuit arrangement for selective insulation monitoring in a power supply system having isolable subsystems (2025-07-29),

4. 12372569 - Methods for accelerating the insulation resistance measurement in an ungrounded power supply system (2025-07-29),

5. 12332317 - Sensor for a vehicle electrical system (2025-06-17),

6. 12105128 - Method and device for impedance monitoring for protection against electric shock (2024-10-01),

7. 12072366 - Method and electric circuit arrangement for determining a branch insulation resistance and a branch leakage capacitance in an ungrounded power supply system (2024-08-27),

8. 12000881 - Method for automatically creating installation-specific measuring profiles for an insulation monitoring system (2024-06-04),

9. 11959975 - Method and monitoring device for determining a partial insulation resistance and a partial system leakage capacitance in a branched ungrounded power supply system (2024-04-16),

10. 11867718 - Method and device for identifying and locating cyclic momentary insulation faults in an underground power supply system (2024-01-09),

11. 11818859 - Carrier-rail bus assembly with automatic bus addressing (2023-11-14),

12. 11789060 - Grounded socket and method for insulation fault location in an ungrounded power supply system including insulation monitoring (2023-10-17),

13. 11774918 - Electric circuit arrangement for standard insulation monitoring with emergency shut-down for an ungrounded power supply system upon detection of a ground fault (2023-10-03),

14. 11719759 - Method and measuring device for detecting a leakage current in an ungrounded, single-phase alternating-current power supply system (2023-08-08),

15. 11705715 - Method, electrical circuit arrangements and insulation monitoring devices for an interference-resistant insulation monitoring of an ungrounded power supply system having a converter (2023-07-18),

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USPTO Data Jan 1 1976 - Dec 16 2025

82 Patents

#1 in Gruenberg

#718 in Germany

#8,906 in the World

Gruenberg, Germany

Bender Gmbh & Co Kg