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Berlin, Germany

Wankel Gmbh

USPTO Granted Patents = 62

Forward Citations = 347

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27 inventors (with patents filed for the assignee):

Dankwart Eiermann (36 out of 38 patents)

Werner Schubert (7 out of 7 patents)

Wolfgang Sohler (6 out of 7 patents)

4. Roland Nuber (5 out of 7 patents)

5. Josef Speiser (4 out of 4 patents)

6. Hans-Jurgen Klusowski (3 out of 3 patents)

7. Johannes Steinwart (3 out of 19 patents)

8. Franz Sutter (2 out of 2 patents)

9. Manfred Fischer (2 out of 2 patents)

10. Max Ruf (2 out of 24 patents)

11. Felix Wankel (2 out of 2 patents)

12. Gottlieb Wilmers (2 out of 8 patents)

13. Werner Wieland (2 out of 2 patents)

14. Otto Kraic (2 out of 5 patents)

15. Wulf Leitermann (1 out of 14 patents)

Core Competencies:

Rotary Piston Engine

Internal Combustion Engine

Eccentric Bearing

Cooling System

Lubrication System

Rotary Piston Compressor

Axial Seal

Pressure Valve

Bearing Arrangement

Fluid-Cooled Housing

Delivery Valve

Heat Pump Unit

62 patents: Sort by Forward Citations

1. 5452996 - Position-independent rotary piston internal combustion engine (1995-09-26),

2. 5199863 - Sealing of an eccentric bearing of a rotary piston internal combustion (1993-04-06),

3. 5100309 - Cooling medium pump of a rotary piston internal combustion engine (1992-03-31),

4. 5067557 - Machine unit consisting of a rotary piston internal combustion engine (1991-11-26),

5. 5049049 - Rotary piston internal combustion engine (1991-09-17),

6. 5039289 - Rotary piston blower having piston lobe portions shaped to avoid (1991-08-13),

7. 5011387 - Rotary piston internal combustion engine (1991-04-30),

8. 5011385 - Bearing- and drive arrangement of a rotary piston internal combustion (1991-04-30),

9. 4971533 - Piston of a rotary piston engine (1990-11-20),

10. 4969809 - Lubrication system for an eccentric bearing of a rotary piston (1990-11-13),

11. 4943217 - Delivery valve of a rotary piston compressor (1990-07-24),

12. 4940400 - Lubrication system for a rotary-piston internal combustion engine (1990-07-10),

13. 4886437 - Bearing arrangement of an external-axial rotary piston blower (1989-12-12),

14. 4867659 - Parallel-and external-axial rotary piston blower operating in meshing (1989-09-19),

15. 4850827 - Cooling system of an eccentric shaft of a rotary piston internal (1989-07-25),

Wankel GmbH specializes in the manufacturing and distribution of high-quality industrial components. With over three decades of experience, we offer innovative solutions and reliable products to our global customers. Our comprehensive range includes precision gears, rotary engines, and custom-made parts. We are committed to delivering excellence, ensuring customer satisfaction, and meeting industry standards. Visit our website to explore our product range and learn more about our capabilities.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

62 Patents

#20 in D-1000 Berlin

#919 in Germany

#11,348 in the World

Berlin, Germany

Wankel Gmbh

Forward Citations = 347

27 inventors:

Dankwart Eiermann (36 out of 38 patents)

Werner Schubert (7 out of 7 patents)

Wolfgang Sohler (6 out of 7 patents)

4. Roland Nuber (5 out of 7 patents)

5. Josef Speiser (4 out of 4 patents)

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