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For the Inventor, By the Inventor

Leverkusen, Germany

Covestro Deutschland Ag


USPTO Granted Patents = 649



Trademarks = 79

Forward Citations = 689

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1,014 inventors (with patents filed for the assignee):

goldMedal Dirk Achten (51 out of 89 patents)

silverMedal Thomas Knauf (31 out of 51 patents)

bronzeMedal Hans-Josef Laas (30 out of 83 patents)

4.  Friedrich-Karl Bruder (30 out of 87 patents)

5.  Christoph Gürtler (30 out of 65 patents)

6.  Thomas Fäcke (27 out of 54 patents)

7.  Hartmut Nefzger (24 out of 61 patents)

8.  Jörg Hofmann (24 out of 55 patents)

9.  Thomas Ernst Müller (24 out of 47 patents)

10.  Stefan Wershofen (23 out of 54 patents)

11.  Alexander Meyer (23 out of 59 patents)

12.  Walter Leitner (23 out of 51 patents)

13.  Dennis Hönel (23 out of 46 patents)

14.  Aurel Wolf (22 out of 43 patents)

15.  Marc-Stephan Weiser (22 out of 46 patents)


Core Competencies:
Polyurethane Matrix
Polycarbonate Composite
Thermoplastic Polyurethanes
Isocyanate Production
Polyoxazolidinone
Composite Materials
Aqueous Resin Composition
Thermostable Photopolymers
Polyoxyalkylene Polyols
Adhesive Technologies
Thermoplastic Polymers
Artificial Intelligence

649 patents:

1. 12516152 - Polyester carbonates having a defined proportion of ester groups (2026-01-06),
2. 12509419 - Process for the distillation of isocyanates (2025-12-30),
3. 12508519 - Distillation unit and method for separating a liquid substance mixture into two to six liquid product flows with different compositions (2025-12-30),
4. 12497485 - Method for producing a poly(anthranilamide), poly(anthranilamide) and use thereof (2025-12-16),
5. 12492281 - Polyisocyanurate materials as electrical potting compounds (2025-12-09),
6. 12486375 - Polycarbonate composite article (2025-12-02),
7. 12486351 - Solid surface materials with polyurethane matrix (2025-12-02),
8. 12479966 - Method for producing thermoplastic polyurethanes (2025-11-25),
9. 12473253 - Method for operating a plant for continuous production of an isocyanate (2025-11-18),
10. 12466949 - E/E component containing polycarbonate material having high tracking resistance (2025-11-11),
11. 12466913 - Method for the production of a thermoplastic polyoxazolidinone (2025-11-11),
12. 12447699 - Anisotropic composite materials based on polyisocyanates (2025-10-21),
13. 12441680 - Method for producing isocyanates (2025-10-14),
14. 12441614 - Method of cleaning an apparatus used in the concentration of a mineral acid (2025-10-14),
15. 12435177 - Aqueous polyurethane resin composition and coating material using the composition (2025-10-07),
Covestro Deutschland AG, a leading manufacturer of high-performance materials, serves various industries with innovative solutions. With a focus on sustainability, Covestro delivers products and technologies for sectors such as automotive, construction, electronics, and healthcare. The company is committed to creating superior materials that promote sustainable development and meet customer needs worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

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649 Patents

#3 in Leverkusen

#81 in Germany

#1,483 in the World

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Leverkusen, Germany

Covestro Deutschland Ag

Forward Citations = 689

1,014 inventors:

goldMedal Dirk Achten (51 out of 89 patents)

silverMedal Thomas Knauf (31 out of 51 patents)

bronzeMedal Hans-Josef Laas (30 out of 83 patents)

4.  Friedrich-Karl Bruder (30 out of 87 patents)

5.  Christoph Gürtler (30 out of 65 patents)

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