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Heliotronic Forschungs- Und Entwicklungsgesellschaft Fur

USPTO Granted Patents = 14

Forward Citations = 149

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31 inventors (with patents filed for the assignee):

Josef Dietl (7 out of 17 patents)

Dieter Helmreich (3 out of 5 patents)

Erhard Sirtl (3 out of 10 patents)

4. Dieter Seifert (3 out of 10 patents)

5. Cord Gessert (3 out of 3 patents)

6. Erich Bildl (2 out of 3 patents)

7. Joachim Geissler (2 out of 3 patents)

8. Hans-Dieter Miller (2 out of 2 patents)

9. Jorg Kotilge (2 out of 3 patents)

10. Karl Egglhuber (1 out of 9 patents)

11. Gerhard Ast (1 out of 2 patents)

12. Herbert Pichler (1 out of 2 patents)

13. Hermann Dicker (1 out of 1 patent)

14. Rolf Bauregger (1 out of 1 patent)

15. Rudolf Rothlehner (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 5164138 - Material comprising silicon and process for its manufacture (1992-11-17),

2. 5093289 - Ceramic material permitting the passage of fluids and based on silicon (1992-03-03),

3. 4787986 - Process and apparatus for melting silicon powder (1988-11-29),

4. 4777926 - Device for clamping the blades in a gang saw for sawing crystal rods (1988-10-18),

5. 4769107 - Process and apparatus for the cyclical manufacture of silicon shaped (1988-09-06),

6. 4759887 - Apparatus and process for the manufacture of shaped bodies from silicon (1988-07-26),

7. 4733649 - Process and apparatus for multiple lap cutting of solid materials (1988-03-29),

8. 4588571 - Process for the purification of silicon by the action of an acid (1986-05-13),

9. 4515600 - Process for the removal of the slag portion from molten mixtures of slag (1985-05-07),

10. 4461671 - Process for the manufacture of semiconductor wafers (1984-07-24),

11. 4447289 - Process for the manufacture of coarsely crystalline to monocrystalline (1984-05-08),

12. 4428783 - Process for the manufacture of vertical P-N junctions in the pulling of (1984-01-31),

13. 4366024 - Process for making solar cell base material (1982-12-28),

14. 4308245 - Method of purifying metallurgical-grade silicon (1981-12-29),

Heliotronic Forschungs- Und Entwicklungsgesellschaft Fur is a leading company in the field of solar energy research and development. With a strong focus on innovation and sustainability, our team of experts is dedicated to creating cutting-edge technologies that harness the power of the sun to provide clean and renewable energy solutions. Visit our website to learn more about our work and how we are shaping the future of energy.

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

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USPTO Data Jan 1 1976 - Dec 30 2025

14 Patents

#88 in undefined, undefined

#200 in

#21,642 in US

#40,929 in the World

Heliotronic Forschungs- Und Entwicklungsgesellschaft Fur

Forward Citations = 149

31 inventors:

Josef Dietl (7 out of 17 patents)

Dieter Helmreich (3 out of 5 patents)

Erhard Sirtl (3 out of 10 patents)

4. Dieter Seifert (3 out of 10 patents)

5. Cord Gessert (3 out of 3 patents)

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