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Osnabrueck, Germany

Wilhelm Karmann Gmbh

USPTO Granted Patents = 183

% Expired Patents = 68.3

EPO Patents = 99

Forward Citations = 1,143

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153 inventors (with patents filed for the assignee):

Winfried Bunsmann (24 out of 24 patents)

Udo Heselhaus (21 out of 22 patents)

Frank G Neubrand (19 out of 38 patents)

4. Klaus Russke (14 out of 14 patents)

5. Karl Rothe (11 out of 11 patents)

6. Norbert Habacker (9 out of 10 patents)

7. Franz-Ulrich Brockhoff (9 out of 9 patents)

8. Joachim Maass (9 out of 10 patents)

9. Sven Hollenbeck (8 out of 8 patents)

10. Peter Gutendorf (5 out of 5 patents)

11. Reinhard Wolfgang Quindt (5 out of 6 patents)

12. Wolfgang Richter (4 out of 11 patents)

13. Heinrich Selle (4 out of 4 patents)

14. Petra Liedmeyer (4 out of 4 patents)

15. Stefan Meinert (4 out of 4 patents)

Core Competencies:

Convertible Roof

Cabriolet Vehicle

Soft Top

Latching Mechanism

Roof Assembly

Overcenter Linkage

Tonneau System

Pivotable Roof

Hinge Device

Windscreen Deflector

Crash Resistance

Modular Unit

183 patents: Sort by Forward Citations

1. 8459721 - Top for a convertible vehicle (2013-06-11),

2. 8366174 - Convertible vehicle with a displaceable roof part (2013-02-05),

3. 8235448 - Headliner for convertible vehicle (2012-08-07),

4. 8162378 - Motor vehicle with an at least partly mobile roof (2012-04-24),

5. 8132841 - Convertible with a sunroof part (2012-03-13),

6. 8132840 - Center driven tonneau system (2012-03-13),

7. 8132329 - Method of assembling the roof of a cabriolet or convertible vehicle using a preassembly work stand that aligns outer roof components with roof frame and linkage components (2012-03-13),

8. 8056957 - Torsion spring system for convertible top (2011-11-15),

9. 8056956 - Convertible roof with sun roof part (2011-11-15),

10. 8038200 - Convertible vehicle (2011-10-18),

11. 8020916 - Convertible vehicle with a roof that is capable of opening separately (2011-09-20),

12. 8002326 - Convertible top having over center backlight (2011-08-23),

13. 7992302 - Method of manufacturing a plurality of convertible roofs for vehicle bodies (2011-08-09),

14. 7959208 - Convertible top with in-folding side rails (2011-06-14),

15. 7950718 - Convertible soft top with fins (2011-05-31),

Company Overview

Wilhelm Karmann GmbH, based in Osnabrueck, Germany, specializes in the design and manufacturing of convertible vehicles. The company is renowned for its innovative approaches to convertible roof systems, including soft tops and latching mechanisms. Karmann's expertise extends to the development of roof assemblies and tonneau systems, enhancing the functionality and aesthetics of cabriolet vehicles. With a focus on engineering excellence, Karmann plays a significant role in the automotive sector, particularly in the realm of open-top vehicle design.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

183 Patents

#1 in Osnabrueck

#324 in Germany

#4,565 in the World

Osnabrueck, Germany

Wilhelm Karmann Gmbh

Forward Citations = 1,143

153 inventors:

Winfried Bunsmann (24 out of 24 patents)

Udo Heselhaus (21 out of 22 patents)

Frank G Neubrand (19 out of 38 patents)

4. Klaus Russke (14 out of 14 patents)

5. Karl Rothe (11 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wilhelm Karmann Gmbh. Retrieved from https://idiyas.com/company/wilhelm-karmann

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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