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For the Inventor, By the Inventor

Kirchheim unter Teck, Germany

Nucellsys Gmbh

Calculating rank
USPTO Granted Patents = 38

% Expired Patents = 84.2


Forward Citations = 111

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70 inventors (with patents filed for the assignee):

goldMedal Tomas Stefanovski (5 out of 10 patents)

silverMedal Martin Schuessler (5 out of 21 patents)

bronzeMedal Stefan Boneberg (5 out of 21 patents)

4.  Josef Sonntag (4 out of 9 patents)

5.  Uwe Limbeck (3 out of 5 patents)

6.  Manfred Strohmaier (3 out of 3 patents)

7.  Markus Aberle (3 out of 8 patents)

8.  Andreas Ebert (3 out of 6 patents)

9.  Oskar Lamla (3 out of 10 patents)

10.  Bruno Motzet (3 out of 9 patents)

11.  Alois Tischler (3 out of 13 patents)

12.  Detlef Zur Megede (3 out of 24 patents)

13.  Berthold Keppeler (2 out of 24 patents)

14.  Uwe Griesmeier (2 out of 63 patents)

15.  Gerhard M Schmidt (2 out of 3 patents)


Core Competencies:
Fuel Cell System
Gas Recirculation
Hydrogen Production
Power Generation
Temperature Control
Catalytic Reaction
Cooling Fluid
Electrical Output
Methanol Reforming
Gas Generation
Selective Catalytic Oxidation
Insulation Resistance

38 patents:

1. 9029037 - Fuel cell system with a liquid separator (2015-05-12),
2. 9028991 - Fuel cell system with variable Coanda amplifiers for gas recirculation and system pressure regulation (2015-05-12),
3. 8841040 - Method to cold-start fuel cell system at sub-zero temperatures (2014-09-23),
4. 8043755 - Fuel cell based power generation systems and methods of operating the same (2011-10-25),
5. 7709977 - Method and arrangement for controlling a switching connection between the electrical outputs of a fuel cell and an isolated electrical network (2010-05-04),
6. 7494517 - Device and process for producing a device for the catalytic generation of hydrogen from hydrocarbons (2009-02-24),
7. 7481984 - System for heating and/or converting at least one medium (2009-01-27),
8. 7477049 - Method for controlling the quality of the coolant for fuel cell systems (2009-01-13),
9. 7449259 - Power converter architecture and method for integrated fuel cell based power supplies (2008-11-11),
10. 7422809 - Method and apparatus for regulating electrical power output of a fuel cell system (2008-09-09),
11. 7413820 - Fuel cell system with recombiner (2008-08-19),
12. 7405016 - Apparatus for supplying an oxygen-containing gas to a fuel cell system (2008-07-29),
13. 7395854 - Systems and methods for controlling cooling fluid temperature in a fuel cell engine (2008-07-08),
14. 7387983 - Methanol reforming catalyst having a reduced volume shrinkage (2008-06-17),
15. 7378066 - Device for carrying out a heterogeneously catalyzed reaction and method for producing a catalyst (2008-05-27),
Company Overview
Nucellsys GmbH, based in Kirchheim unter Teck, Germany, specializes in advanced technologies for energy storage and management systems. The company focuses on developing innovative solutions that enhance the efficiency and sustainability of energy usage across various applications. With a strong emphasis on research and development, Nucellsys is dedicated to pushing the boundaries of energy technology, contributing to the transition towards greener energy solutions and supporting industries in optimizing their energy consumption.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

38 Patents

#3 in Kirchheim unter Teck

#1,345 in Germany

#17,879 in the World

Kirchheim unter Teck, DE
Kirchheim unter Teck, Germany

Nucellsys Gmbh

Forward Citations = 111

70 inventors:

goldMedal Tomas Stefanovski (5 out of 10 patents)

silverMedal Martin Schuessler (5 out of 21 patents)

bronzeMedal Stefan Boneberg (5 out of 21 patents)

4.  Josef Sonntag (4 out of 9 patents)

5.  Uwe Limbeck (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nucellsys Gmbh. Retrieved from https://idiyas.com/company/nucellsys

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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