For the Inventor, By the Inventor

Enter assignee name

Bad Homburg, Germany

Ringspann Gmbh

USPTO Granted Patents = 24

% Expired Patents = 25.0

EPO Patents = 3

Trademarks = 1

Forward Citations = 53

Loading Chart...

Loading Chart...

16 inventors (with patents filed for the assignee):

Karlheinz Timtner (9 out of 23 patents)

Ruprecht Maurer (8 out of 17 patents)

Siegfried Jackwerth (3 out of 3 patents)

4. Volker Schlautmann (2 out of 2 patents)

5. Hans-Joachim Polack (2 out of 3 patents)

6. Hartmut Bischoff (2 out of 3 patents)

7. Augustyn Brzus (2 out of 2 patents)

8. Thomas Heubach (2 out of 2 patents)

9. Dieter Thelen (1 out of 22 patents)

10. Tobias Neuber (1 out of 2 patents)

11. Franz Hrubes (1 out of 12 patents)

12. Bruno Hotz (1 out of 3 patents)

13. Rainer Fuchs (1 out of 1 patent)

14. Achim Mayer (1 out of 1 patent)

15. Bernd Mayer (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 11859677 - Cage freewheel with bearing rollers (2024-01-02),

2. 11808312 - Cage freewheel (2023-11-07),

3. D984334 - Brake caliper for machinery (2023-04-25),

4. 11624415 - Caliper brake (2023-04-11),

5. 10307837 - Clamping fixture (2019-06-04),

6. 10215242 - Electromagnetic active brake (2019-02-26),

7. 9809394 - Torque-limiting return stop device (2017-11-07),

8. 9683619 - Electromagnetic active brake (2017-06-20),

9. 9662715 - Clamping fixture (2017-05-30),

10. 9188166 - Return stop (2015-11-17),

11. 8813931 - Free-wheel cage ring with centrifugal-force lifting (2014-08-26),

12. 8104751 - Device for holding a double clutch in a balancing machine (2012-01-31),

13. 7870940 - Frictionally engaged free-wheel clutch (2011-01-18),

14. 7077246 - Fall safety device (2006-07-18),

15. 6450693 - Bearing arrangement for a shaft supporting a rotating tool (2002-09-17),

Ringspann GmbH, headquartered in Bad Homburg, Germany, specializes in the development and manufacturing of high-quality drive technology components. The company focuses on precision engineering solutions, including clutches, brakes, and torque limiters, serving various industries such as automotive, machine tools, and renewable energy. With a commitment to innovation, Ringspann integrates advanced technologies to enhance performance and reliability in mechanical systems, positioning itself as a key player in the global engineering landscape.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

24 Patents

#6 in Bad Homburg

#1,904 in Germany

#26,595 in the World

Bad Homburg, Germany

Ringspann Gmbh

Forward Citations = 53

16 inventors:

Karlheinz Timtner (9 out of 23 patents)

Ruprecht Maurer (8 out of 17 patents)

Siegfried Jackwerth (3 out of 3 patents)

4. Volker Schlautmann (2 out of 2 patents)

5. Hans-Joachim Polack (2 out of 3 patents)

Please report any incorrect information to [email protected]

Loading…