Deutsche Montan Technologie Gmbh

Calculating rank

USPTO Granted Patents = 5

% Expired Patents = 20.0

CIPO Patents = 1

Trademarks = 2

Forward Citations = 10

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12 inventors (with patents filed for the assignee):

Hans-Josef Giertz (4 out of 8 patents)

Franz Liesewitz (3 out of 4 patents)

Frank Rossa (2 out of 3 patents)

4. Friedrich-Wilhelm Cyris (2 out of 3 patents)

5. Horst Schröder (2 out of 2 patents)

6. Friedrich Huhn (1 out of 4 patents)

7. Jürgen George (1 out of 3 patents)

8. Stephan Peters (1 out of 1 patent)

9. Sönke Rapp (1 out of 1 patent)

10. Eiko Räkers (1 out of 1 patent)

11. Klaus Dieter Ruthemann (1 out of 1 patent)

12. Friedrich Wilhelm Cyris (1 out of 1 patent)

13. Juergen George (0 patent)

14. Horst Schroder (0 patent)

15. Soenke Rapp (0 patent)

5 patents: Sort by Forward Citations

1. 7534995 - Device for examining rotor drilled holes (2009-05-19),

2. 7176341 - Method and devices for producing naphthalene from coke produced from coke oven crude gas (2007-02-13),

3. 7166197 - Coke oven door with wraparound gas channel and membrane (2007-01-23),

4. 7067043 - Coke oven door with gas channel (2006-06-27),

5. 6918999 - Device and method for sealing levelling door aperture of a coke oven chamber (2005-07-19),

Company Overview

Deutsche Montan Technologie GmbH is a leading engineering and technology company specializing in the mining and minerals processing industry. With a strong emphasis on innovation and sustainability, DMT provides comprehensive solutions for mining projects worldwide. From exploration to production, DMT offers a wide range of services including feasibility studies, project management, and environmental protection. With a global presence and a team of experienced professionals, DMT is a trusted partner for the mining industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

5 Patents

#62 in Essen

#6,111 in Germany

Essen, Germany

Deutsche Montan Technologie Gmbh

Forward Citations = 10

12 inventors:

Hans-Josef Giertz (4 out of 8 patents)

Franz Liesewitz (3 out of 4 patents)

Frank Rossa (2 out of 3 patents)

4. Friedrich-Wilhelm Cyris (2 out of 3 patents)

5. Horst Schröder (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Deutsche Montan Technologie Gmbh. Retrieved from https://idiyas.com/company/deutsche-montan-technologie

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

1 patent (CIPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]