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Forward Citations = 54

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12 inventors (with patents filed for the assignee):

Hans-Joachim Koschlig (4 out of 4 patents)

Helmut Schmidt (1 out of 118 patents)

Fred Brunk (1 out of 4 patents)

4. Lothar Brandau (1 out of 1 patent)

5. Frank Hutter (1 out of 2 patents)

6. Wilhelm Stewen (1 out of 7 patents)

7. Klaus Wessiepe (1 out of 6 patents)

8. Wolfgang Becker (1 out of 1 patent)

9. Engelbert Overkott (1 out of 1 patent)

10. Willi Kunkel (1 out of 1 patent)

11. Martin Heumuller (1 out of 1 patent)

12. Walter Hartmann (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 5322826 - Refractory material (1994-06-21),

2. 5137602 - Heating chamber for a coke oven and method of heating a coke oven (1992-08-11),

3. 4917772 - Oven door assembly (1990-04-17),

4. 4916106 - Supported catalyst and process for its production for the reduction of (1990-04-10),

5. 4866015 - Silica brick and process for producing same (1989-09-12),

6. 4833115 - Ceramic honeycombed elongated catalyst carrier and method for production (1989-05-23),

Dr. C. Otto Feuerfest GmbH is a leading manufacturer of refractory products for industrial applications. With a history dating back to 1904, the company has established itself as a reliable partner for clients in various industries. Their high-quality products are used in furnaces, kilns, and other high-temperature processes to ensure optimal performance and long-lasting durability. Dr. C. Otto Feuerfest GmbH is committed to innovation and continuous improvement to meet the evolving needs of their customers.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

6 Patents

#16 in Bochum

#5,322 in Germany

Bochum, Germany

Dr. C. Otto Feuerfest Gmbh