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Frankfurt am Main, Germany

Cerdec Aktiengesellschaft Keramische Farben

USPTO Granted Patents = 28

Forward Citations = 168

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34 inventors (with patents filed for the assignee):

Gerhard Tunker (6 out of 6 patents)

Dietrich Speer (6 out of 26 patents)

Hans-Peter Letschert (5 out of 11 patents)

4. Andreas Schulz (5 out of 8 patents)

5. Adalbert Huber (5 out of 6 patents)

6. Martin Jansen (4 out of 31 patents)

7. Marco Hofler (4 out of 4 patents)

8. Hildegard Paulus (3 out of 3 patents)

9. Klaus-Dieter Fritsche (2 out of 7 patents)

10. Holger Jarnicki (2 out of 2 patents)

11. Gabriele Wachowitz (2 out of 2 patents)

12. Kai Dorer (2 out of 6 patents)

13. Bernd Dorbath (2 out of 6 patents)

14. Norbert Giesecke (2 out of 6 patents)

15. Oliver Heitmann (2 out of 2 patents)

28 patents: Sort by Forward Citations

1. 6235103 - Tantalum (V) nitride pigments, process for the production thereof and use thereof (2001-05-22),

2. 6228160 - Stains which bake to a red-brown color, process for their preparation and their methods of use (2001-05-08),

3. 6180222 - Gold-containing nanoporous aluminum oxide membranes a process for their production and their use (2001-01-30),

4. 6174359 - Ceramic decoration coloring substances with increased color saturation comprising zirconium pigments, process for their production and their use (2001-01-16),

5. 6171383 - Bismuth manganese oxide green pigments (2001-01-09),

6. 6103312 - Process for the production of decorated tableware with increased (2000-08-15),

7. 6077797 - Green decoration coloring substance for high-temperature firing, process (2000-06-20),

8. 6063446 - Process for the production of decorated tableware with increased (2000-05-16),

9. 6057037 - Substrate coated with a lead-free glass composition (2000-05-02),

10. 6004391 - Pigments for the production of purple ceramic decoration, process for (1999-12-21),

11. 5939343 - Lead-free glass composition and the use thereof (1999-08-17),

12. 5843853 - Lead-free glass composition and its use (1998-12-01),

13. 5827789 - Lead-free glass composition and the use thereof (1998-10-27),

14. 5766336 - Colored pigments based on oxide-nitrides, the preparation and use thereof (1998-06-16),

15. 5721303 - Organosulfur gold compounds, a process for their production and their use (1998-02-24),

Cerdec Aktiengesellschaft Keramische Farben is a leading manufacturer of ceramic colors and glazes. With over 50 years of experience in the industry, we offer a wide range of high-quality products for the ceramic and glass sectors. Our innovative formulations and advanced production techniques ensure vibrant and long-lasting colors for a variety of applications. From tableware and tiles to architectural ceramics and sanitaryware, our products are trusted by customers worldwide. Visit our website to learn more about our extensive product portfolio and find the perfect solution for your ceramic color needs.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

28 Patents

#31 in Frankfurt am Main

#1,719 in Germany

#22,547 in the World

Frankfurt am Main, Germany

Cerdec Aktiengesellschaft Keramische Farben

Forward Citations = 168

34 inventors:

Gerhard Tunker (6 out of 6 patents)

Dietrich Speer (6 out of 26 patents)

Hans-Peter Letschert (5 out of 11 patents)

4. Andreas Schulz (5 out of 8 patents)

5. Adalbert Huber (5 out of 6 patents)

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