For the Inventor, By the Inventor

Enter assignee name

Ismaning, Germany

Refratechnik Holding Gmbh

USPTO Granted Patents = 26

% Expired Patents = 26.9

CIPO Patents = 1

EPO Patents = 33

Trademarks = 16

Forward Citations = 44

Loading Chart...

Loading Chart...

30 inventors (with patents filed for the assignee):

Helge Jansen (14 out of 18 patents)

Holger Wirsing (7 out of 8 patents)

Thomas Schemmel (6 out of 6 patents)

4. Petra Stein (4 out of 4 patents)

5. Hans-Jürgen Klischat (4 out of 4 patents)

6. Carsten Vellmer (4 out of 4 patents)

7. Peter Bartha (4 out of 9 patents)

8. Michael Schölwer (3 out of 3 patents)

9. Volker Stein (3 out of 3 patents)

10. Guido Weibel (2 out of 3 patents)

11. Hans-Jurgen Klischat (2 out of 3 patents)

12. Heinrich Grosse Daldrup (2 out of 2 patents)

13. Christos Georgios Aneziris (2 out of 8 patents)

14. Jennifer Werz (1 out of 1 patent)

15. Bertram Kesselheim (1 out of 1 patent)

26 patents: Sort by Forward Citations

1. 12715815 - Batch for the production of a coarse ceramic refractory basic product, such product and method for its production, lining of an industrial furnace and industrial furnace (2026-08-25),

2. 12486201 - Dry material mixture for a backfill, preferably a refractory concrete backfill, for producing a heavy-clay refractory non-basic product, refractory concrete backfill and such a product, method for producing same, lining, and industrial furnace, channel transport system or mobile transport vessel (2025-12-02),

3. 11603319 - Synthesis method for producing a calcium zirconate-containing material and batch and coarse ceramic refractory product having a pre-synthesized calcium zirconate-containing granular material (2023-03-14),

4. 11440847 - Method for producing a porous sintered magnesia, backfill for producing a heavy-clay refractory product with a granulation from the sintered magnesia, product of this type, and method for the production thereof, lining of an industrial furnace and industrial furnace (2022-09-13),

5. 11219943 - Plate, in particular covering plate for molten metal, and method for producing the plate and use thereof (2022-01-11),

6. 11150022 - Use of a heat insulating molded body for isolation of molten metal against the atmosphere or against a metallurgical vessel (2021-10-19),

7. 11148973 - Insulating, refractory molded body, especially plate, and process for its manufacture and its usage (2021-10-19),

8. 10227260 - Refractories and use thereof (2019-03-12),

9. 10207955 - Refractories and use thereof (2019-02-19),

10. 10093581 - Refractory batch and use thereof (2018-10-09),

11. 10029945 - Geopolymer-binder system for fire concretes, dry fire concrete mix containing the binder system and also the use of the mix (2018-07-24),

12. 9862645 - Fireproof product containing graphite, method for producing said product, and use of said product (2018-01-09),

13. 9809498 - Refractory coarse ceramic product and method for producing the same and its use (2017-11-07),

14. 9403728 - Flame-retardant product and use thereof (2016-08-02),

15. 9382161 - Process using non-fired refractory products as a lining of large-volume industrial furnaces and industrial furnaces lined with the non-fired refractory products (2016-07-05),

Refratechnik Holding GmbH is a leading global provider of advanced refractory solutions. With a diverse product portfolio and over 70 years of experience, the company offers innovative refractory materials, systems, and services for various industries such as steel, cement, lime, glass, and non-ferrous metals. Refratechnik focuses on optimizing the entire production process by delivering customized solutions that enhance performance, durability, and energy efficiency. For more information, please visit their website.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

Refratechnik Holding Gmbh

26 Patents

#2 in Ismaning

#1,779 in Germany

#24,720 in the World

Ismaning, Germany

Refratechnik Holding Gmbh

Forward Citations = 44

30 inventors:

Helge Jansen (14 out of 18 patents)

Holger Wirsing (7 out of 8 patents)

Thomas Schemmel (6 out of 6 patents)

4. Petra Stein (4 out of 4 patents)

5. Hans-Jürgen Klischat (4 out of 4 patents)

Please report any incorrect information to [email protected]

Loading…