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Friedrichshafen, Germany

Zahnradfabrik Friedrichshafen, Ag.

USPTO Granted Patents = 416

CIPO Patents = 1

Forward Citations = 4,116

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300 inventors (with patents filed for the assignee):

Armin Lang (38 out of 48 patents)

Dieter Elser (27 out of 35 patents)

Friedrich J Ehrlinger (26 out of 30 patents)

4. Werner Tischer (21 out of 21 patents)

5. Karl-Heinz Liebert (20 out of 20 patents)

6. Egon Mann (17 out of 26 patents)

7. Rolf Fassbender (16 out of 18 patents)

8. Johann Merz (13 out of 21 patents)

9. Gerold Bieber (11 out of 14 patents)

10. Michael Meyerle (11 out of 20 patents)

11. Georg Gierer (10 out of 53 patents)

12. Anton Ott (10 out of 10 patents)

13. Erich Jablonsky (10 out of 10 patents)

14. Manfred Bucksch (9 out of 11 patents)

15. Wolfgang Walter (8 out of 8 patents)

Core Competencies:

Sealing Arrangement

Gear-Shift Control

Electronic-Hydraulic Control

Torque Control

Hydropneumatic Suspension

Multi-Stage Speed-Change Gear

Hydrostatic Drive System

Automatic Transmission

Clutch Synchronizing Device

Auxiliary Power Steering

Continuously Variable Drive Unit

Radial Piston Pump

416 patents: Sort by Forward Citations

1. 5421591 - Sealing arrangement (1995-06-06),

2. 5419412 - Gear-shift control and gear-range selector for a semi-automatic or (1995-05-30),

3. 5417626 - Electronic-hydraulic control device for transmission systems of vehicles (1995-05-23),

4. 5417124 - Gear change for an industrial vehicle provided with an integrated (1995-05-23),

5. 5405248 - Flow regulating valve (1995-04-11),

6. 5390347 - Range change transmission for vehicles (1995-02-14),

7. 5383824 - Process for controlling the torque of an internal combustion engine (1995-01-24),

8. 5383378 - Driven axle (1995-01-24),

9. 5352100 - Pump drive for a motor vehicle automatic transmission (1994-10-04),

10. 5343779 - Arrangement and process for operating a fail safe braking system in a (1994-09-06),

11. 5338010 - Hydropneumatic vehicle suspension (1994-08-16),

12. 5336120 - Control system for operating a ship's motive installation (1994-08-09),

13. 5335762 - Clutch with a synchronizing device (1994-08-09),

14. 5306215 - Drive device with gearbox (1994-04-26),

15. 5305862 - Control device for a frictionally engaging clutch for a hydrodynamic (1994-04-26),

Zahnradfabrik Friedrichshafen (ZF) is a leading global technology company that specializes in driveline and chassis technology. With a heritage of over 100 years, ZF is constantly developing innovative solutions for the automotive industry. The company manufactures transmissions, steering systems, suspension components, and hybrid/electric drivetrains. ZF's products can be found in a wide range of vehicles, from cars and trucks to motorcycles and agricultural machinery. For more information, please visit their official website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

416 Patents

#2 in Friedrichshafen

#147 in Germany

#2,199 in the World

Friedrichshafen, Germany

Zahnradfabrik Friedrichshafen, Ag.

Forward Citations = 4,116

300 inventors:

Armin Lang (38 out of 48 patents)

Dieter Elser (27 out of 35 patents)

Friedrich J Ehrlinger (26 out of 30 patents)

4. Werner Tischer (21 out of 21 patents)

5. Karl-Heinz Liebert (20 out of 20 patents)

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