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Stuttgart, Germany

Mahle Gmbh

USPTO Granted Patents = 144

EPO Patents = 27

Trademarks = 6

Forward Citations = 1,138

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130 inventors (with patents filed for the assignee):

Rainer Scharp (13 out of 67 patents)

Peter Kemnitz (13 out of 24 patents)

Emil Ripberger (10 out of 10 patents)

4. Wolfgang Issler (9 out of 21 patents)

5. Ulrich Bischofberger (7 out of 29 patents)

6. Karlheinz Bing (7 out of 11 patents)

7. Michael Ullrich (5 out of 12 patents)

8. Martin Ruhle (5 out of 5 patents)

9. Jurgen Ellermann (5 out of 5 patents)

10. Gotthard Stuska (5 out of 5 patents)

11. Dieter Gabriel (4 out of 11 patents)

12. Michael T Lapp (4 out of 27 patents)

13. Rolf-Gerhard Fiedler (4 out of 6 patents)

14. Dieter Messmer (4 out of 10 patents)

15. Hanspeter Wieland (4 out of 4 patents)

Core Competencies:

Plain Bearings

Metal Matrix Composites

Internal Combustion Engine

Piston Production

Aluminum Alloys

Piston Cooling Channels

Oil Control Rings

Composite Pistons

Wear-Resistant Materials

Piston Ring Coating

Diesel Engine Pistons

Casting Methods

144 patents: Sort by Forward Citations

1. 10982714 - Plain bearing and method (2021-04-20),

2. 8282748 - Process for producing metal matrix composite materials (2012-10-09),

3. 8011095 - Method for producing a piston for an internal combustion engine (2011-09-06),

4. 7892482 - Material on the basis of an aluminum alloy, method for its production, as well as use therefor (2011-02-22),

5. 7806098 - Cylinder sleeve for an internal combustion engine (2010-10-05),

6. 7685710 - Method for producing a piston for an internal combustion engine (2010-03-30),

7. 7647863 - Piston pin bearing for pistons of an internal combustion engine (2010-01-19),

8. 7628134 - Piston for an internal combustion engine (2009-12-08),

9. 7584694 - Composite piston for an internal combustion engine (2009-09-08),

10. 7572344 - Method for the production of wear-resistant sides for a keystone ring for internal combustion engine (2009-08-11),

11. 7464684 - Composite piston for an internal combustion engine (2008-12-16),

12. 7431305 - Oil scraper ring ring groove arrangement for pistons of internal combustion engines (2008-10-07),

13. 7415959 - Cooling channel cover for a piston of an internal combustion engine (2008-08-26),

14. 7409903 - One-piece piston for an internal combustion engine (2008-08-12),

15. 7396018 - Oil scraper ring for pistons of internal combustion engines (2008-07-08),

Mahle GmbH is a leading global automotive and mobility solutions provider. The company specializes in developing innovative products and systems for internal combustion engines, electric powertrains, and alternative fuels. With a strong commitment to sustainability, Mahle strives to improve the efficiency, performance, and environmental impact of vehicles. Their solutions cover a wide range of products, including engine components, filtration systems, thermal management solutions, and electric vehicle technologies. Headquartered in Stuttgart, Germany, Mahle operates in over 30 countries worldwide, serving customers in the automotive industry and other sectors.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

144 Patents

#13 in

#458 in

#5,495 in the World

Stuttgart, Germany

Mahle Gmbh

Forward Citations = 1,138

130 inventors:

Rainer Scharp (13 out of 67 patents)

Peter Kemnitz (13 out of 24 patents)

Emil Ripberger (10 out of 10 patents)

4. Wolfgang Issler (9 out of 21 patents)

5. Ulrich Bischofberger (7 out of 29 patents)

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