For the Inventor, By the Inventor

Enter assignee name

Leverkusen, Germany

Hennecke Gmbh

USPTO Granted Patents = 32

% Expired Patents = 37.5

EPO Patents = 18

Trademarks = 4

Forward Citations = 145

Loading Chart...

Loading Chart...

33 inventors (with patents filed for the assignee):

Hans-Michael Sulzbach (16 out of 55 patents)

Reiner Raffel (13 out of 52 patents)

Ferdinand Althausen (6 out of 39 patents)

4. Jürgen Wirth (5 out of 6 patents)

5. Martin Schamberg (4 out of 4 patents)

6. Wolfgang Pawlik (4 out of 4 patents)

7. Wilfried Ebeling (4 out of 22 patents)

8. Robert Eiben (4 out of 16 patents)

9. Florian Thiebes (3 out of 3 patents)

10. Jens Geuer (2 out of 2 patents)

11. Juergen Wirth (2 out of 2 patents)

12. Horst Klahre (2 out of 8 patents)

13. Michael Begemann (2 out of 2 patents)

14. Lothar Röhrig (2 out of 2 patents)

15. Jürgen Wirth (2 out of 2 patents)

32 patents: Sort by Forward Citations

1. 10888827 - Component mixing jet (2021-01-12),

2. 9616599 - Method for the continuous production of an endless string of polyurethane reactive plastic material (2017-04-11),

3. 9616596 - Method and device for the production of form parts (2017-04-11),

4. 9186831 - Method and device for producing of a form part (2015-11-17),

5. 8329256 - Method and device for the production of moulded pieces from a layer of polyurethane (2012-12-11),

6. 7968023 - Method for the production of polyurethane block foam (2011-06-28),

7. 7404916 - Process for producing polyurethane moldings (2008-07-29),

8. 7351363 - Press for hard foam plates (2008-04-01),

9. 7278842 - Apparatus for the production of polyurethane sandwich elements (2007-10-09),

10. 7240689 - Multiple component mixing head (2007-07-10),

11. 7230037 - Method for mixing a polyol component and an isocyanate component (2007-06-12),

12. 7144534 - Method and device for producing rebonded foam blocks (2006-12-05),

13. 7101163 - Process and apparatus for the continuous production of slabstock foam (2006-09-05),

14. 6889816 - Device for inserting and removing work stations circulating on chain (2005-05-10),

15. 6833095 - Process for the continuous production of slabstock foam (2004-12-21),

HENNECKE GmbH is a global leader in providing high-performance machinery and systems for processing polyurethane. With over seven decades of experience, we offer innovative solutions for a variety of industries including automotive, construction, insulation, and more. Our cutting-edge technologies ensure efficient production processes and excellent product quality. Visit our website to learn more about our advanced products and capabilities.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

32 Patents

#14 in Leverkusen

#1,521 in Germany

#20,620 in the World

Leverkusen, Germany

Hennecke Gmbh

Forward Citations = 145

33 inventors:

Hans-Michael Sulzbach (16 out of 55 patents)

Reiner Raffel (13 out of 52 patents)

Ferdinand Althausen (6 out of 39 patents)

4. Jürgen Wirth (5 out of 6 patents)

5. Martin Schamberg (4 out of 4 patents)

Please report any incorrect information to [email protected]

Loading…