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Leipzig, Germany

Heraeus Quarzglas Gmbh & Co Kg

USPTO Granted Patents = 229

CIPO Patents = 3

EPO Patents = 165

Trademarks = 21

Forward Citations = 692

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242 inventors (with patents filed for the assignee):

Martin Trommer (27 out of 27 patents)

Walter Lehmann (23 out of 23 patents)

Michael Hünermann (18 out of 21 patents)

4. Christian Neumann (16 out of 21 patents)

5. Thomas Kayser (16 out of 16 patents)

6. Matthias Otter (15 out of 15 patents)

7. Waltraud Werdecker (15 out of 25 patents)

8. Boris Gromann (14 out of 14 patents)

9. Andreas Langner (14 out of 14 patents)

10. Stefan Ochs (14 out of 14 patents)

11. Jan Vydra (14 out of 15 patents)

12. Oliver Ganz (13 out of 14 patents)

13. Heinz Fabian (13 out of 23 patents)

14. Gerrit Scheich (12 out of 12 patents)

15. Bodo Kuehn (12 out of 12 patents)

Core Competencies:

Hollow-Core Fiber

Quartz Glass

Synthetic Quartz Glass

Refractive Index Profile

Titanium-Containing Quartz Glass

Heat-Reflecting Member

Multilayered Silica Glass

Optical Blanks

Glass Homogenization

Carbon-Doped Silicon Dioxide

Fluorinated Quartz Glass

Glass Component Production

229 patents: Sort by Forward Citations

1. 12481098 - Anti-resonance preform with two contact points (2025-11-25),

2. 12428332 - Method for producing a preform of an anti-resonant hollow-core fiber (2025-09-30),

3. 12422359 - Tomographic refractive index profile evaluation of non-symmetrical glass fiber preforms and fibers themselves (2025-09-23),

4. 12378150 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2025-08-05),

5. 12286374 - Titanium-containing quartz glass having excellent UV absorption, and method for producing same (2025-04-29),

6. 12264095 - Reflective member and glass layered member production method (2025-04-01),

7. 12246982 - Process for the preparation of synthetic quartz glass (2025-03-11),

8. 12246981 - Method for homogenizing glass (2025-03-11),

9. 12240778 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2025-03-04),

10. 12215048 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2025-02-04),

11. 12209045 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2025-01-28),

12. 12189177 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2025-01-07),

13. 12180107 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2024-12-31),

14. 12180106 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2024-12-31),

15. 12180104 - Heat-reflecting member, and method for manufacturing glass member having heat-reflecting layer included therein (2024-12-31),

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

229 Patents

#1 in Leipzig

#287 in Germany

#3,631 in the World

Leipzig, Germany

Heraeus Quarzglas Gmbh & Co Kg

Forward Citations = 692

242 inventors:

Martin Trommer (27 out of 27 patents)

Walter Lehmann (23 out of 23 patents)

Michael Hünermann (18 out of 21 patents)

4. Christian Neumann (16 out of 21 patents)

5. Thomas Kayser (16 out of 16 patents)

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