For the Inventor, By the Inventor

Enter assignee name

Heraeus Quarzschmelze Gmbh

USPTO Granted Patents = 50

Trademarks = 4

Forward Citations = 841

Loading Chart...

Loading Chart...

54 inventors (with patents filed for the assignee):

Fritz Simmat (10 out of 14 patents)

Karlheinz Rau (10 out of 14 patents)

Karl A Schulke (10 out of 11 patents)

4. Rolf Bruning (6 out of 6 patents)

5. Uwe Christiansen (5 out of 13 patents)

6. Albert Muhlich (5 out of 6 patents)

7. Norbert Treber (4 out of 5 patents)

8. Karl Kreutzer (4 out of 5 patents)

9. Anton Steinkohl (3 out of 8 patents)

10. Norbert Mittelstadt (3 out of 3 patents)

11. Hans-Ulrich Bonewitz (3 out of 3 patents)

12. Jurgen Roth (3 out of 3 patents)

13. Karl-Albert Schulke (3 out of 3 patents)

14. Christopher J Bayne (3 out of 3 patents)

15. Wolfgang Englisch (2 out of 13 patents)

Core Competencies:

Glass Manufacturing

Infrared Radiators

Continuous Ovens

Silicon Dioxide Purification

Semiconductor Processing

Fused Silica

Optical Fibers

Lightweight Mirrors

Quartz Glass Tubes

Heat Treatment

Electrodeposition

Chemical Analysis

50 patents: Sort by Forward Citations

1. 5049175 - Method of manufacturing a glass body having a non-uniform refractive (1991-09-17),

2. 5003284 - Infrared radiator (1991-03-26),

3. 4978836 - Continuous oven (1990-12-18),

4. 4964227 - Apparatus for drying finely divided solids (1990-10-23),

5. 4962310 - Radiant unit (1990-10-09),

6. 4956059 - Process for the purification of granular silicon dioxide (1990-09-11),

7. 4915624 - Continuous oven for soldering electronic components (1990-04-10),

8. 4915474 - Transmission line for optical radiation and applications thereof (1990-04-10),

9. 4898604 - Method of manufacturing a blank for a light-weight mirror with a (1990-02-06),

10. 4842628 - Method of verifying a porous article made out of glass soot and furnace (1989-06-27),

11. 4826521 - Method of manufacturing articles of extremely pure synthetic particulate (1989-05-02),

12. 4775317 - Oven for the heat treatment of semiconductor substrates (1988-10-04),

13. 4720407 - Double-walled quartz-glass tube for semiconductor-technology processes (1988-01-19),

14. 4676814 - Method for the continuous building of a hollow cylindrical soot body (1987-06-30),

15. 4669938 - Apparatus for automatically loading a furnace with semiconductor wafers (1987-06-02),

Heraeus Quarzschmelze GmbH is a subsidiary of Heraeus, a global technology group headquartered in Germany. Established in 1900, Heraeus Quarzschmelze GmbH specializes in the production of high-quality quartz glass. They offer a wide range of products and solutions, including quartz glass tubes, rods, crucibles, plates, and custom components for various industries such as semiconductor, optics, fiber optics, and pharmaceutical. With their expertise and advanced manufacturing processes, Heraeus Quarzschmelze GmbH is committed to delivering innovative and reliable quartz glass solutions to meet their customers' unique requirements.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

50 Patents

#10 in Hanau

#1,079 in Germany

#13,575 in the World

Heraeus Quarzschmelze Gmbh

Forward Citations = 841

54 inventors:

Fritz Simmat (10 out of 14 patents)

Karlheinz Rau (10 out of 14 patents)

Karl A Schulke (10 out of 11 patents)

4. Rolf Bruning (6 out of 6 patents)

5. Uwe Christiansen (5 out of 13 patents)

Please report any incorrect information to support@idiyas.com

Loading…