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Wülfrath, Germany

Dolomitwerke Gmbh

USPTO Granted Patents = 10

Forward Citations = 50

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23 inventors (with patents filed for the assignee):

Alfred Roeder (4 out of 6 patents)

Herbert Richrath (3 out of 3 patents)

Rainer Prange (3 out of 3 patents)

4. Max Chmiel (3 out of 3 patents)

5. Thomas Hammer (2 out of 2 patents)

6. Heinzjosef Poggenpohl (2 out of 2 patents)

7. Horst Tiemann (2 out of 2 patents)

8. Heinz Stripp (2 out of 2 patents)

9. Hans-Jürgen Richter (1 out of 4 patents)

10. Wolfgang Rasim (1 out of 2 patents)

11. Wolfgang Steichert (1 out of 1 patent)

12. Dieter Vahlhaus (1 out of 1 patent)

13. Dieter Opitz (1 out of 2 patents)

14. Gert Konig (1 out of 1 patent)

15. Gerhard Putzky (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 5993703 - Process for producing steel casting ladle monolithic refractory lining (1999-11-30),

2. 5958312 - Process for the partial reconstruction of the refractory lining of the (1999-09-28),

3. 5718866 - Process for producing refractory materials (1998-02-17),

4. 5458833 - Method of thermal treatment of mineral raw material (1995-10-17),

5. 5249778 - Gas stir plug device with visual wear indicator (1993-10-05),

6. 5246648 - Production of sintered dolomite in a rotary kiln (1993-09-21),

7. 4877761 - Refractory composition for refractory linings of metallurgical vessels (1989-10-31),

8. 4627948 - Method of manufacturing a sintered dolomite in a shaft kiln (1986-12-09),

9. 4549906 - Basic fire resistant material and shaped bodies therefrom (1985-10-29),

10. 4394454 - Method for making sintered dolomite with a low porosity and a good (1983-07-19),

Dolomitwerke GmbH is a leading supplier of high-quality dolomitic lime and refractory products. With over 150 years of experience, the company specializes in the extraction, processing, and distribution of dolomite and other minerals for various industries such as steel, glass, and construction. Dolomitwerke GmbH is committed to sustainable production practices and ensuring customer satisfaction through innovative solutions and reliable service.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

10 Patents

#1 in Wülfrath

#3,749 in Germany

#55,954 in the World

Wülfrath, Germany

Dolomitwerke Gmbh

Forward Citations = 50

23 inventors:

Alfred Roeder (4 out of 6 patents)

Herbert Richrath (3 out of 3 patents)

Rainer Prange (3 out of 3 patents)

4. Max Chmiel (3 out of 3 patents)

5. Thomas Hammer (2 out of 2 patents)

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