EPO Patents = 3

Trademarks = 15

Forward Citations = 709

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31 inventors (with patents filed for the assignee):

Klaus Franck (6 out of 7 patents)

Michael Englisch (4 out of 5 patents)

Werner Sauer (4 out of 5 patents)

4. Carsten Gehner (3 out of 6 patents)

5. Burkhard Schmitz (2 out of 11 patents)

6. Franz Biggel (2 out of 5 patents)

7. Hans Roericht (2 out of 5 patents)

8. Horst Fleischmann (2 out of 2 patents)

9. Herbert L Wiesmann (2 out of 4 patents)

10. Herbert Ohl (2 out of 3 patents)

11. Markus Jehs (2 out of 16 patents)

12. Jürgen Laub (2 out of 15 patents)

13. Heiko Buettner (1 out of 3 patents)

14. Heinrich Iglseder (1 out of 7 patents)

15. Andreas Rechtien (1 out of 1 patent)

26 patents: Sort by Forward Citations

1. D862937 - Table (2019-10-15),

2. D845659 - Chair (2019-04-16),

3. D834851 - Chair (2018-12-04),

4. 9713380 - Chair (2017-07-25),

5. 9700138 - Seating furniture product (2017-07-11),

6. D709712 - Piece of seating furniture (2014-07-29),

7. D610817 - Chair (2010-03-02),

8. D610816 - Chair (2010-03-02),

9. D609926 - Chair (2010-02-16),

10. D609482 - Seating furniture (2010-02-09),

11. 7637570 - Chair (2009-12-29),

12. D482205 - Chair (2003-11-19),

13. 6637352 - Table with pivotable table-top (2003-10-28),

14. D456163 - Chair (2002-05-01),

15. D428273 - Chair (2000-07-18),

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

26 Patents

#30 in Hannover

#1,812 in Germany

#24,051 in the World

Hannover, Germany

Wilkhahn Wilkening + Hahne Gmbh + Co.