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Frankfurt, Germany

Zimmer Aktiengesellschaft

USPTO Granted Patents = 100

% Expired Patents = 32.0

CIPO Patents = 3

Forward Citations = 1,061

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132 inventors (with patents filed for the assignee):

Ulrich Thiele (15 out of 22 patents)

Stefan Zikeli (9 out of 55 patents)

Friedrich Ecker (8 out of 34 patents)

4. Fritz Wilhelm (8 out of 20 patents)

5. Dietmar Wandel (7 out of 19 patents)

6. Heinz-Dieter Beeck (6 out of 9 patents)

7. Heinz-Dieter Schumann (6 out of 10 patents)

8. Eckhard Seidel (5 out of 21 patents)

9. Reinhard Wolf (5 out of 6 patents)

10. Joachim Seelig (5 out of 5 patents)

11. Wolfgang Schmidt (5 out of 5 patents)

12. Michael Reisen (4 out of 10 patents)

13. Ralf-Uwe Bauer (4 out of 11 patents)

14. Brigitta Otto (4 out of 12 patents)

15. Rainer Tietze (4 out of 4 patents)

Core Competencies:

Polyester

Polytrimethylene Terephthalate

Cellulose Solutions

Synthetic Fibers

Polyamide

Filament Production

Catalysts

Extrusion

Melt Spinning

Polycarbonate

Heavy Metal Removal

Waste Treatment

100 patents: Sort by Forward Citations

1. 7538143 - Method for the treatment of waste containing polyamide with the reprocessing of the depolymerisation residue (2009-05-26),

2. 7335410 - Composition and process for manufacturing polyester (2008-02-26),

3. 7314570 - Method for removing heavy metals from media containing heavy metals by means of a Lyocell moulded body, cellulosic moulded body comprising absorbed heavy metals, and the use of the same (2008-01-01),

4. 7303710 - Method and device for extruding a continuous moulded body (2007-12-04),

5. 7270779 - Method and device for producing continuous molded bodies (2007-09-18),

6. 7244806 - Method and device for the continuous production of polyesters (2007-07-17),

7. 7241855 - Method for the manufacture of polyesters (2007-07-10),

8. 7223830 - Method and device for the production of polytrimethylene terephthalate (2007-05-29),

9. 7223471 - Polytrimethylene terephthalate resins with improved properties (2007-05-29),

10. 7217317 - Device and method for the secure conveyance and handling of spinnable cellulose solutions (2007-05-15),

11. 7204265 - Bursting insert (2007-04-17),

12. 7175792 - Method for producing cellulose shaped-bodies (2007-02-13),

13. 7173127 - Method for the manufacture of caprolactam from waste containing polyamides (2007-02-06),

14. 7153927 - Process of continuously producing polyesters or copolyesters (2006-12-26),

15. 7152742 - Separation process for carpets (2006-12-26),

Zimmer Aktiengesellschaft, headquartered in Frankfurt, Germany, specializes in the production and development of polyester and related materials. The company focuses on advanced technologies in polyester production, including Polytrimethylene Terephthalate and cellulose solutions. Zimmer is also engaged in the manufacturing of synthetic fibers and polyamide, utilizing innovative processes such as filament production, catalysts, and extrusion techniques. Its expertise positions it as a key player in the synthetic materials industry, contributing to various applications across multiple sectors.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

100 Patents

#23 in Frankfurt

#587 in Germany

#7,768 in the World

Frankfurt, Germany

Zimmer Aktiengesellschaft

Forward Citations = 1,061

132 inventors:

Ulrich Thiele (15 out of 22 patents)

Stefan Zikeli (9 out of 55 patents)

Friedrich Ecker (8 out of 34 patents)

4. Fritz Wilhelm (8 out of 20 patents)

5. Dietmar Wandel (7 out of 19 patents)

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