For the Inventor, By the Inventor

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San Jose, CA, United States of America

Tetrasun, Inc.

USPTO Granted Patents = 12

% Expired Patents = 83.3

EPO Patents = 2

Forward Citations = 13

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9 inventors (with patents filed for the assignee):

Oliver Schultz-Wittmann (9 out of 11 patents)

Adrian Bruce Turner (7 out of 7 patents)

Douglas E Crafts (7 out of 43 patents)

4. Denis DeCeuster (3 out of 3 patents)

5. Denis De Ceuster (1 out of 21 patents)

6. Bonneville Dudgeon Eggleston (1 out of 1 patent)

7. Qing Yuan Ong (1 out of 1 patent)

8. Qin Yang Ong (1 out of 1 patent)

9. Oliver Schultz-Wittman (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 9966481 - Shielded electrical contact and doping through a passivating dielectric layer in a high-efficiency crystalline solar cell, including structure and methods of manufacture (2018-05-08),

2. 9673341 - Photovoltaic devices with fine-line metallization and methods for manufacture (2017-06-06),

3. 9666732 - High-efficiency solar cell structures and methods of manufacture (2017-05-30),

4. 9634179 - Selective removal of a coating from a metal layer, and solar cell applications thereof (2017-04-25),

5. 9564542 - Selective transformation in functional films, and solar cell applications thereof (2017-02-07),

6. 9508887 - Methods of forming solar cells (2016-11-29),

7. 9478694 - Method for forming structures in a solar cell (2016-10-25),

8. 9443994 - Shielded electrical contact and doping through a passivating dielectric layer in a high-efficiency crystalline solar cell, including structure and methods of manufacture (2016-09-13),

9. 9184314 - Shielded electrical contact and doping through a passivating dielectric layer in a high-efficiency crystalline solar cell, including structure and methods of manufacture (2015-11-10),

10. 9130074 - High-efficiency solar cell structures and methods of manufacture (2015-09-08),

11. 8940572 - Method for forming structures in a solar cell (2015-01-27),

12. 8236604 - Fine line metallization of photovoltaic devices by partial lift-off of optical coatings (2012-08-07),

Tetrasun, Inc. is a technology company based in San Jose, California, specializing in advanced solar energy solutions. The organization focuses on the development and manufacturing of high-efficiency solar cells and modules, leveraging innovative materials and processes to enhance energy conversion. Tetrasun aims to contribute to sustainable energy initiatives by providing cost-effective and reliable solar power technologies, catering to both residential and commercial markets.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

12 Patents

#466 in San Jose, CA

#6,055 in California

#25,526 in US

#48,090 in the World

San Jose, CA, United States of America

Tetrasun, Inc.

Forward Citations = 13

9 inventors:

Oliver Schultz-Wittmann (9 out of 11 patents)

Adrian Bruce Turner (7 out of 7 patents)

Douglas E Crafts (7 out of 43 patents)

4. Denis DeCeuster (3 out of 3 patents)

5. Denis De Ceuster (1 out of 21 patents)

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