Ruediger Kellmann

This inventor holds 21 USPTO granted patents and 9 published patent applications, primarily in Photovoltaic Technology. Top assignees: International Business Machines Corporation, Globalfoundries Inc.. Active years: 2016-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ruediger Kellmann. Retrieved from https://idiyas.com/inventor/ruediger-kellmann

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

Calculating rank

USPTO Granted Patents = 21 (Patent Applications = 9)

% Patents Active = 33.3

Average Co-Inventor Count = 4.1

ph-index = 2

Forward Citations = 22(Granted Patents)

Company Filing History:

20 out of 166,425

International Business Machines Corporation

Years Active: 2016-2021

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Areas of Expertise:

Photovoltaic Cells

Thin Film

Solar Energy

Multijunction

Integrated Battery

Solar Cell Efficiency

Back Contacts

Absorber Thickness

Electronic Conversion

Manufacturing Process

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11024761 - Mechanically stacked, lateral multi-junction photovoltaic cells (2021-06-01),

2. 10741710 - Thin film photovoltaic cell with back contacts (2020-08-11),

3. 10651327 - Thin film photovoltaic cell with back contacts (2020-05-12),

4. 10559702 - Monolithically integrated thin-film device with a solar cell, an integrated battery, and a controller (2020-02-11),

5. 10290748 - Monolithically integrated thin-film device with a solar cell, an integrated battery, and a controller (2019-05-14),

6. 10283653 - Solar cell with reduced absorber thickness and reduced back surface recombination (2019-05-07),

7. 10170659 - Monolithically integrated thin-film electronic conversion unit for lateral multijunction thin-film solar cells (2019-01-01),

8. 9972733 - Monolithic interconnection for solar cells (2018-05-15),

9. 9941419 - Monolithically integrated thin-film device with a solar cell, an integrated battery, and a controller (2018-04-10),

10. 9859451 - Thin film photovoltaic cell with back contacts (2018-01-02),

11. 9825192 - Solar cell with reduced absorber thickness and reduced back surface recombination (2017-11-21),

12. 9773927 - Solar cell with reduced absorber thickness and reduced back surface recombination (2017-09-26),

13. 9735309 - Monolithically integrated thin-film electronic conversion unit for lateral multijunction thin-film solar cells (2017-08-15),

14. 9634171 - Monolithically integrated thin-film electronic conversion unit for lateral multijunction thin-film solar cells (2017-04-25),

15. 9634166 - Thin film photovoltaic cell with back contacts (2017-04-25),

Title: Ruediger Kellmann: Innovator in Photovoltaic Technology

Introduction: Ruediger Kellmann is a prominent inventor based in Mainz, Germany, known for his significant contributions to the field of photovoltaic technology. With a remarkable portfolio of 21 patents, Kellmann has pioneered innovative solutions that enhance the efficiency and functionality of solar energy applications.

Latest Patents: Among his latest inventions are advanced photovoltaic cell designs that include Mechanically Stacked, Lateral Multi-Junction Photovoltaic Cells. This invention presents a groundbreaking approach where multiple photovoltaic subcells are mechanically stacked. Each subcell is engineered with a light absorption structure optimized for distinct spectral ranges of incoming radiation. This configuration minimizes overlap while ensuring maximum absorption and efficiency. Additionally, he has developed a Thin Film Photovoltaic Cell with Back Contacts. This design incorporates a transparent substrate and a specially arranged light absorption layer with discrete electrical contacts, improving the electrical coupling and overall performance of the photovoltaic cell.

Career Highlights: Ruediger Kellmann has a rich career marked by his tenure at esteemed companies such as IBM and Globalfoundries Inc. His work at these organizations has solidified his reputation as a leading expert in the solar energy sector, allowing him to push the boundaries of current technology and research.

Collaborations: Throughout his career, Kellmann has collaborated with notable professionals, including Markus Schmidt and Hans-Juergen Eickelmann. These partnerships have fostered a creative environment that has led to innovative breakthroughs in photovoltaic technology.

Conclusion: Ruediger Kellmann's contributions to the photovoltaic field through his extensive patent portfolio and collaborative efforts exemplify his commitment to advancing solar energy technology. His innovative designs not only showcase his expertise but also play a critical role in the future of renewable energy solutions.

Profile summary based on public USPTO records.

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]

9 patents pending: