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Pierburg Gmbh & Co Kg

USPTO Granted Patents = 42

Trademarks = 1

Forward Citations = 270

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44 inventors (with patents filed for the assignee):

Hans Baumgartner (12 out of 18 patents)

Rainer Sudbeck (8 out of 10 patents)

Karl Schmidt (4 out of 4 patents)

4. Ulrich Henke (4 out of 7 patents)

5. Ernst Kuhlen (3 out of 6 patents)

6. Hans-Jurgen Muller (3 out of 4 patents)

7. Asoke Chattopadhay (3 out of 3 patents)

8. Georg Habel (3 out of 3 patents)

9. Wojciech Marusiak (3 out of 3 patents)

10. Eckehard Schmitz (3 out of 3 patents)

11. Walter Schauer (2 out of 4 patents)

12. Dieter Schwander (2 out of 2 patents)

13. Bernd Findeisen (2 out of 2 patents)

14. Manfred Henning (2 out of 6 patents)

15. Manfred Brandstadter (2 out of 5 patents)

42 patents: Sort by Forward Citations

1. 4729397 - Electromagnetic control valve for a pressure fluid and associated method (1988-03-08),

2. 4722482 - Electro-magnetic injection valve having enhanced valve-opening forces (1988-02-02),

3. 4672928 - Ignition device for internal combustion engines (1987-06-16),

4. 4657737 - Apparatus for determining the fuel-air ratio of Otto engines (1987-04-14),

5. 4627825 - Apparatus for the angular adjustment of a shaft, such as a camshaft, (1986-12-09),

6. 4615482 - Multi-way fluid flow control valve (1986-10-07),

7. 4604040 - Displacement machine having a housing and piston with spiral walls (1986-08-05),

8. 4587883 - High resolution control system for a pressure-responsive positioning (1986-05-13),

9. 4543939 - Fuel supply assembly for mixture-compressing internal combustion engines (1985-10-01),

10. 4531899 - Positive displacement rotary gas compressor pump (1985-07-30),

11. 4514153 - Rotary vane pump with clutch (1985-04-30),

12. 4511082 - Fuel-injection systems and associated methods (1985-04-16),

13. 4508089 - Method of regulating the charge of combustion gas delivered to an (1985-04-02),

14. 4486688 - Method and arrangement for regulting a path length in dependence upon a (1984-12-04),

15. 4483428 - Clutch for work arrangements, particularly on internal combustion (1984-11-20),

Pierburg GmbH & Co. KG is a leading automotive supplier specializing in emission control, air supply, and throttle valves. With over 115 years of experience, the company provides innovative solutions for reducing emissions and improving engine performance. Pierburg is committed to sustainability and strives to develop environmentally friendly products for the automotive industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

42 Patents

#4 in Neuss

#1,248 in Germany

#15,845 in the World

Pierburg Gmbh & Co Kg

Forward Citations = 270

44 inventors:

Hans Baumgartner (12 out of 18 patents)

Rainer Sudbeck (8 out of 10 patents)

Karl Schmidt (4 out of 4 patents)

4. Ulrich Henke (4 out of 7 patents)

5. Ernst Kuhlen (3 out of 6 patents)

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