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For the Inventor, By the Inventor

Lohmar, Germany

Gkn Viscodrive Gmbh


USPTO Granted Patents = 41

Forward Citations = 318

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18 inventors (with patents filed for the assignee):

goldMedal Georg Kwoka (11 out of 12 patents)

silverMedal Adrian Chludek (9 out of 19 patents)

bronzeMedal Theodor Gassmann (7 out of 62 patents)

4.  Heinz Madsack (4 out of 4 patents)

5.  Makoto Hagiwara (3 out of 3 patents)

6.  Nikolaus Mayr (2 out of 2 patents)

7.  Horst Görlich (2 out of 2 patents)

8.  Manfred Hofer (2 out of 2 patents)

9.  Manfred Hofer (2 out of 2 patents)

10.  Fred Kramer (1 out of 4 patents)

11.  Bernd Constantin (1 out of 3 patents)

12.  Christian Gasch (1 out of 5 patents)

13.  Herbert Taureg (1 out of 17 patents)

14.  Michael Höck (1 out of 2 patents)

15.  Paul-Erich Schönenbrücher (1 out of 1 patent)


Core Competencies:
Controllable Viscous Coupling
Differential Drive
Mechanical Clutch
Shaft Coupling
Torque Transmission
Viscous Shear Control
Coupling Assembly
Braking Stability
Friction Coupling
Axial Adjusting Device
Dampening Device
Torque Distribution

41 patents:

1. 7252017 - Axial adjusting device with multiple ball means (2007-08-07),
2. 6874605 - Controllable viscous coupling (2005-04-05),
3. 6866131 - Controllable viscous coupling (2005-03-15),
4. 6845854 - Axial setting device (2005-01-25),
5. 6668993 - Viscous coupling (2003-12-30),
6. 6616566 - Differential drive (2003-09-09),
7. 6581741 - Axial setting device (2003-06-24),
8. 6578693 - Axial setting device (2003-06-17),
9. 6484859 - Shaft coupling with a dampening device (2002-11-26),
10. 6446773 - Viscous coupling with symmetric freewheeling assembly (2002-09-10),
11. 6443282 - Apparatus and method for controllable viscous coupling (2002-09-03),
12. 6394246 - Twin-coupling with improved braking stability and less torsion (2002-05-28),
13. 6342025 - Differential drive (2002-01-29),
14. 6299538 - Differential-speed-controlled transmitting coupling (2001-10-09),
15. 6296095 - Coupling assembly with double shear channel (2001-10-02),
GKN Viscodrive GmbH is a leading manufacturer of advanced technology solutions for driveline systems. They specialize in variable-speed systems, torque vectoring solutions, and driveline disconnect technologies. With a strong focus on innovation and customer satisfaction, GKN Viscodrive GmbH delivers cutting-edge products that enhance vehicle performance, efficiency, and control.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

41 Patents

#6 in Lohmar

#1,272 in Germany

#16,217 in the World

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Lohmar, Germany

Gkn Viscodrive Gmbh

Forward Citations = 318

18 inventors:

goldMedal Georg Kwoka (11 out of 12 patents)

silverMedal Adrian Chludek (9 out of 19 patents)

bronzeMedal Theodor Gassmann (7 out of 62 patents)

4.  Heinz Madsack (4 out of 4 patents)

5.  Makoto Hagiwara (3 out of 3 patents)

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