For the Inventor, By the Inventor

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Buford, GA, United States of America

Heraeus Quartz North America LLC

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USPTO Granted Patents = 19

EPO Patents = 15

Trademarks = 1

Forward Citations = 5

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20 inventors (with patents filed for the assignee):

Kai Huei Chang (11 out of 12 patents)

Qiulin Ma (10 out of 10 patents)

Evan P Green (7 out of 7 patents)

4. James E Beavers, Jr (5 out of 5 patents)

5. Carl W Ponader (3 out of 3 patents)

6. Maximilian Schmitt (3 out of 4 patents)

7. Oliver Ganz (2 out of 14 patents)

8. Georges Levon Fattal (2 out of 3 patents)

9. Ivan Rasnik (1 out of 3 patents)

10. Alexander Rudl (1 out of 1 patent)

11. Timothy D Jenkins (1 out of 1 patent)

12. Jong-Won Lee (1 out of 1 patent)

13. Jan Vydra (1 out of 15 patents)

14. Tim Alan Pontsler (1 out of 1 patent)

15. Kenneth Robert Koch (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. 12735344 - Process of making multi-core fiber preform by integrating core rods and cladding cylinder (2026-09-15),

2. 12560537 - Ultra low-na refractive index profiling system and method for filtering out severely disturbing diffraction effects (2026-02-24),

3. 12503386 - Inductive furnace with rotating susceptor for high precision waveguide glass draw (2025-12-23),

4. 12422359 - Tomographic refractive index profile evaluation of non-symmetrical glass fiber preforms and fibers themselves (2025-09-23),

5. 12180106 - Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber (2024-12-31),

6. 11840472 - Elongation method and preform for producing an optical glass component (2023-12-12),

7. 11811453 - Upward collapse process and apparatus for making glass preforms (2023-11-07),

8. 11788927 - Evaluation of preforms with non-step-index refractive-index-profile (RIP) (2023-10-17),

9. 11739019 - High-strength welding process for making heavy glass preforms with large cross sectional areas (2023-08-29),

10. 11649185 - Automated large outside diameter preform tipping process and resulting glass preforms (2023-05-16),

11. 11618708 - Elongation method and preform for producing an optical glass component (2023-04-04),

12. 11454580 - Method for preform or tube drawing based on its viscosity (2022-09-27),

13. 11434163 - Variable diameter seal for optical preform furnace (2022-09-06),

14. 11405107 - Upward collapse process and apparatus for making glass preforms (2022-08-02),

15. 10590022 - Formation of elongated glass components with low bow using a gripper device (2020-03-17),

Company Overview

Heraeus Quartz North America LLC specializes in the development and manufacturing of high-purity quartz products and solutions. The company serves various industries, including semiconductor, telecommunications, and solar energy, providing critical materials that enhance performance and reliability. With a focus on innovation, Heraeus Quartz leverages advanced technologies to meet the evolving needs of its clients, ensuring quality and precision in every product. The company operates from its headquarters in Buford, Georgia, contributing to the global supply chain.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

19 Patents

#4 in Buford, GA

#326 in Georgia

#17,167 in US

#32,726 in the World

Buford, GA, United States of America

Heraeus Quartz North America LLC

Forward Citations = 5

20 inventors:

Kai Huei Chang (11 out of 12 patents)

Qiulin Ma (10 out of 10 patents)

Evan P Green (7 out of 7 patents)

4. James E Beavers, Jr (5 out of 5 patents)

5. Carl W Ponader (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Heraeus Quartz North America LLC. Retrieved from https://idiyas.com/company/heraeus-quartz-north-america

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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