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Cologne, Germany

Huels Troisdorf Ag

USPTO Granted Patents = 26

Trademarks = 2

Forward Citations = 393

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51 inventors (with patents filed for the assignee):

Dieter Barfurth (4 out of 13 patents)

Heinz Nestler (4 out of 24 patents)

Hans-Joachim Vahlensieck (4 out of 57 patents)

4. Rudolf Kautz (4 out of 8 patents)

5. Alexander Hover (3 out of 3 patents)

6. Richard Weiss (3 out of 15 patents)

7. Hans-Ulrich Breitscheidel (3 out of 20 patents)

8. Hans-Gunther Srebny (3 out of 5 patents)

9. Manfred Simon (3 out of 6 patents)

10. Paul Spielau (3 out of 34 patents)

11. Hans-Joachim Kotzsch (2 out of 43 patents)

12. Horst Hanisch (2 out of 14 patents)

13. Claus Lindzus (2 out of 3 patents)

14. Manfred Simm (2 out of 6 patents)

15. Hartmut Muller (2 out of 3 patents)

26 patents: Sort by Forward Citations

1. 5244942 - Homogenous, particularly multicolor-structured synthetic resin sheet or (1993-09-14),

2. 5179149 - Process for manufacturing nonwoven materials such as floor or wall (1993-01-12),

3. 5177139 - Moulding material made from elastomeric polyolefin rubbers, (1993-01-05),

4. 5084101 - Process for the preparation of an open-pore foam from essentially (1992-01-28),

5. 5079286 - Casting resins based on acrylic acid esters (1992-01-07),

6. 5051293 - Foldable foam mat (1991-09-24),

7. 5021596 - Zirconium chelates, their preparation, and their use in printing inks (1991-06-04),

8. 5020277 - Vehicle with vehicle door and door gasket (1991-06-04),

9. 4946977 - Method for the preparation of organosilanes containing methacryloxy or (1990-08-07),

10. 4931094 - Titanium(IV)-chelates and their use in printing inks (1990-06-05),

11. 4924016 - Condensed acetoacetic acid ester titanium chelates and process for their (1990-05-08),

12. 4923658 - Process for the production of dyed, flat articles from thermoplastic (1990-05-08),

13. 4917944 - Multi-ply weatherable plasticizer-free sheet (1990-04-17),

14. 4909846 - Compositions based on titanium chelates of diols and titanium acylates (1990-03-20),

15. 4908471 - Method for the production of benzene carboxylic acids and benzene (1990-03-13),

Huels Troisdorf AG is a leading chemical production company specializing in the manufacturing and distribution of industrial chemicals. With over 50 years of experience, we provide high-quality chemicals for various industries including automotive, pharmaceutical, and electronics. Our state-of-the-art facilities and dedicated team ensure strict quality control and compliance with international standards. Through innovation and sustainability, we aim to contribute positively to our customers' success and create a better future.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

26 Patents

#28 in Cologne

#1,820 in Germany

#24,087 in the World

Cologne, Germany

Huels Troisdorf Ag

Forward Citations = 393

51 inventors:

Dieter Barfurth (4 out of 13 patents)

Heinz Nestler (4 out of 24 patents)

Hans-Joachim Vahlensieck (4 out of 57 patents)

4. Rudolf Kautz (4 out of 8 patents)

5. Alexander Hover (3 out of 3 patents)

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