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Dueren, Germany

Zimmermann & Jansen Gmbh

USPTO Granted Patents = 17

Forward Citations = 110

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21 inventors (with patents filed for the assignee):

Josef Lothmann (5 out of 9 patents)

Franz-Josef Irnich (3 out of 7 patents)

Heinz D Hannes (3 out of 3 patents)

4. Ludwig Walther (3 out of 4 patents)

5. Wolfgang Schonbrenner (2 out of 2 patents)

6. Heinz Schneider (2 out of 2 patents)

7. Donald H Regelin (2 out of 2 patents)

8. Norbert Marx (1 out of 5 patents)

9. Dietrich Zosel (1 out of 1 patent)

10. Friedhelm Paulus (1 out of 2 patents)

11. Hans Genreith (1 out of 1 patent)

12. Gunter Nagler (1 out of 2 patents)

13. Jurgen Osborg-Schmitz (1 out of 1 patent)

14. Richard E Fritz, Jr (1 out of 1 patent)

15. Jacob Felthuis (1 out of 11 patents)

17 patents: Sort by Forward Citations

1. 6580744 - Feed device for a shaft furnace (2003-06-17),

2. 6415811 - Cooled slider plate, particularly a water-cooled hot air slider plate (2002-07-09),

3. 5732930 - Valve having tee slot attachments in service area (1998-03-31),

4. 5667196 - Slide valve to close large fluid conduits, in particular double-disk (1997-09-16),

5. 5118084 - Apparatus for controlled adjustment of a stopper of a distributor (1992-06-02),

6. 5116022 - Stop valve for pipe bridge (1992-05-26),

7. 5110018 - Closing apparatus for the bottom pouring hole of a casting ladle (1992-05-05),

8. 4572054 - Exact position feedback of double-acting power piston in hydraulic (1986-02-25),

9. 4545717 - Machine for charging a glass melting tank furnace (1985-10-08),

10. 4478129 - Apparatus for the exact position feedback of a double-acting power (1984-10-23),

11. 4355787 - Method of controlling the nozzle damper of a metallurgical vessel (1982-10-26),

12. 4292993 - Closure plate for hot blast slide valves (1981-10-06),

13. 4292747 - Compressed air dredge (1981-10-06),

14. 4161959 - High-temperature slide valve, especially hot-blast slide valve (1979-07-24),

15. 4150817 - Mixing chamber (1979-04-24),

Company Overview

Zimmermann & Jansen GmbH, based in Dueren, Germany, specializes in innovative solutions within the engineering and manufacturing sectors. The company focuses on the development of advanced technologies and products that cater to various industries, emphasizing quality and precision. With a commitment to research and development, Zimmermann & Jansen is dedicated to enhancing operational efficiencies and driving technological advancements in its field, contributing to the broader landscape of engineering excellence.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

17 Patents

#3 in Dueren

#2,493 in Germany

#35,887 in the World

Dueren, Germany

Zimmermann & Jansen Gmbh

Forward Citations = 110

21 inventors:

Josef Lothmann (5 out of 9 patents)

Franz-Josef Irnich (3 out of 7 patents)

Heinz D Hannes (3 out of 3 patents)

4. Ludwig Walther (3 out of 4 patents)

5. Wolfgang Schonbrenner (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Zimmermann & Jansen Gmbh. Retrieved from https://idiyas.com/company/zimmermann-and-jansen

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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