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For the Inventor, By the Inventor

Dueren, Germany

Z & J Technologies Gmbh


USPTO Granted Patents = 21

% Expired Patents = 19.0


Trademarks = 2

Forward Citations = 31

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29 inventors (with patents filed for the assignee):

goldMedal Roland Travnicek (4 out of 4 patents)

silverMedal Ingo Wirtz (4 out of 4 patents)

bronzeMedal Ekkehard Brzoska (4 out of 4 patents)

4.  Peter Weidgang (3 out of 3 patents)

5.  Norbert Marx (3 out of 5 patents)

6.  Franz-Josef Irnich (3 out of 7 patents)

7.  Markus Gandelheidt (2 out of 2 patents)

8.  Robert Puetz (2 out of 2 patents)

9.  Wolfgang Zingsem (2 out of 2 patents)

10.  Friedel Heller (2 out of 2 patents)

11.  Holger Breuer (2 out of 2 patents)

12.  Ralf Heiden (1 out of 1 patent)

13.  Stefan Krieger (1 out of 1 patent)

14.  Metin Gerceker (1 out of 1 patent)

15.  Marco Knoedler (1 out of 1 patent)


21 patents:

1. 12663086 - Slide gate valve, operating method and use (2026-06-23),
2. 12085190 - Measuring system, slide valve comprising such a measuring system, and method for measuring the position of a slide valve (2024-09-10),
3. 11920692 - Slide valve and use of a slide valve (2024-03-05),
4. 11572954 - Shut-off valve, coking drum and method (2023-02-07),
5. 11035478 - Gate valve, fixing element and method for mounting a gate valve (2021-06-15),
6. 10077845 - Double-plate gate valve and shut-off plate for use in a double-plate gate valve (2018-09-18),
7. 9784373 - Shut-off device and gate valve with a shut-off device (2017-10-10),
8. 9777845 - Conduit slider for chemical and petrochemical systems (2017-10-03),
9. 9752688 - Double-plate gate valve, shut-off plate, and method for sealing a double-plate gate valve (2017-09-05),
10. 9739377 - Triple sealing seat for a conduit gate valve (2017-08-22),
11. 9501064 - Method of solving a control problem in a processing plant (2016-11-22),
12. 9109706 - Coking drum (2015-08-18),
13. 8870156 - Drive means for a slide valve and a slide valve (2014-10-28),
14. 8413956 - Double-disc gate valve (2013-04-09),
15. 8181935 - Sliding valve (2012-05-22),
Company Overview
Z & J Technologies GmbH, based in Dueren, Germany, specializes in advanced manufacturing solutions and innovative technologies. The company focuses on developing high-precision systems and components, particularly for the automotive and industrial sectors. With a commitment to quality and efficiency, Z & J Technologies integrates cutting-edge engineering practices and research to enhance production processes. Their expertise extends to automation and digitalization, positioning them as a key player in the evolving landscape of manufacturing technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Z & J Technologies Gmbh USPTO Patent Assignee Logo
21 Patents

#1 in Dueren

#2,130 in Germany

#29,928 in the World

Dueren, DE
Dueren, Germany

Z & J Technologies Gmbh

Forward Citations = 31

29 inventors:

goldMedal Roland Travnicek (4 out of 4 patents)

silverMedal Ingo Wirtz (4 out of 4 patents)

bronzeMedal Ekkehard Brzoska (4 out of 4 patents)

4.  Peter Weidgang (3 out of 3 patents)

5.  Norbert Marx (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Z & J Technologies Gmbh. Retrieved from https://idiyas.com/company/z-and-j-technologies

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]
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