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Trademarks = 1

Forward Citations = 97

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10 inventors (with patents filed for the assignee):

Eduard Bergmann (4 out of 10 patents)

Volker Speidel (4 out of 5 patents)

Werner E Berginski (4 out of 4 patents)

4. Klaus Buhle (1 out of 4 patents)

5. Ralf Eifer (1 out of 1 patent)

6. Friedhelm Winter (1 out of 1 patent)

7. Lothar Worlitz (1 out of 1 patent)

8. Werner-Ernst Berginski (1 out of 3 patents)

9. Klaus Kassner (1 out of 1 patent)

10. Wolfgang Bonczek (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 4354155 - Circuit arrangement for monitoring a current-consuming load (1982-10-12),

2. 4339667 - Automotive vehicle switching electric circuit (1982-07-13),

3. 4336428 - Steering column assembly switch for automotive vehicles (1982-06-22),

4. 4317104 - Precision resistor for measurement purposes (1982-02-23),

5. 4307301 - Electric circuit arrangement for replacement of an electric switch, with (1981-12-22),

6. 4287786 - Steering column jacket on the steering column of motor vehicles (1981-09-08),

7. 4286126 - Ignition switch (1981-08-25),

8. 4281226 - Ignition switch (1981-07-28),

9. 4251723 - Opto-electronical switching device, specially for motor vehicles (1981-02-17),

10. 4149048 - Motor vehicle signal switch (1979-04-10),

Firma Leopold Kostal is a German family-owned company specializing in the development and production of innovative electronic components and systems for the automotive industry. With a history dating back to 1912, Kostal is known for its dedication to quality and innovation. The company's products are trusted by leading automotive manufacturers around the world.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

10 Patents

#6 in Luedenscheid

#3,712 in Germany

#54,268 in the World

Luedenscheid, Germany

Firma Leopold Kostal