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Zimmermann & Jansen Gmbh

USPTO Granted Patents = 17

Trademarks = 1

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),

Zimmermann & Jansen Gmbh is a leading company in the manufacturing and distribution of industrial machinery. With over 50 years of experience, the company specializes in providing high-quality equipment for various industries such as automotive, aerospace, and manufacturing. Zimmermann & Jansen Gmbh is known for its innovative solutions, superior customer service, and commitment to excellence.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

17 Patents

#2 in Duren

#2,499 in Germany

#34,819 in the World

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)

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