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Chemische Werke Huels Aktiengesellschaft

USPTO Granted Patents = 125

Trademarks = 4

Forward Citations = 942

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150 inventors (with patents filed for the assignee):

Klaus Burzin (11 out of 24 patents)

Gernot Horlbeck (7 out of 11 patents)

Roland Streck (6 out of 20 patents)

4. Karl-Heinz Nordsiek (6 out of 27 patents)

5. Wolfgang Kampf (6 out of 8 patents)

6. Wilfried Bartz (5 out of 19 patents)

7. Horst Heuer (5 out of 11 patents)

8. Albert Frese (5 out of 13 patents)

9. Gunther Maahs (5 out of 12 patents)

10. Hans Jadamus (4 out of 40 patents)

11. Roland Feinauer (4 out of 34 patents)

12. Kurt Kosswig (4 out of 17 patents)

13. Dieter Berger (4 out of 4 patents)

14. Hanns-Jorg Bax (4 out of 9 patents)

15. Klaus Diebel (4 out of 5 patents)

Core Competencies:

Styrene Butadiene Copolymer

Polyphenylene Ether

Anhydrous Cyclic Imido Esters

Polymerization of Vinyl Chloride

Polybutylene Terephthalate

Aliphatic Nitriles

Epoxy Resins

Polyacrylonitrile

Textile Hot-Melt Adhesive

Hydrocarbon Separation

Composite Materials

Fire Retardant Materials

125 patents: Sort by Forward Citations

1. 5187221 - Styrene/butadiene graft copolymer latex and heat-vulcanizable (1993-02-16),

2. 5019299 - Process for the manufacture of wax-like esterification products (1991-05-28),

3. 4690970 - Thermoplastic compositions based on polyphenylene ethers, (1987-09-01),

4. 4574157 - Process for preparing anhydrous cyclic imido esters (1986-03-04),

5. 4556754 - Process for the isomerization of isolated double bonds to conjugated (1985-12-03),

6. 4555550 - Molding compositions based on high molecular weight polyether ester (1985-11-26),

7. 4551564 - Process for the production of 2- and 4-tert-butylcyclohexanols with high (1985-11-05),

8. 4551392 - Composite materials and composite building elements based on EP(D)M (1985-11-05),

9. 4550148 - Molding compositions based on high molecular weight polyalkylene (1985-10-29),

10. 4542790 - Process for extracting extensively emulsion-free oil from a subterranean (1985-09-24),

11. 4542194 - Naphtha-soluble, hydrogenated alkyl aryl ketone/formaldehyde resins and (1985-09-17),

12. 4540759 - Polymerization of vinyl chloride in the presence of a catalyst (1985-09-10),

13. 4537924 - Quadratic acid amide derivatives, their use as stabilizers, and (1985-08-27),

14. 4536548 - Highly transparent, impact-resistant modified polyvinyl chloride molding (1985-08-20),

15. 4525559 - Suspension polymerization of vinyl chloride wherein suspension agent is (1985-06-25),

Chemische Werke Huels Aktiengesellschaft, now a part of Evonik Industries, was a German chemicals company founded in 1938. The company specialized in manufacturing chemicals, plastics, and specialty chemicals for various industries. With a strong focus on innovation and sustainability, Chemische Werke Huels was known for its high-quality products and cutting-edge research and development. Today, as part of Evonik Industries, the company continues to uphold its legacy of excellence in the chemical industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

125 Patents

#3 in Marl

#506 in Germany

#6,212 in the World

Chemische Werke Huels Aktiengesellschaft

Forward Citations = 942

150 inventors:

Klaus Burzin (11 out of 24 patents)

Gernot Horlbeck (7 out of 11 patents)

Roland Streck (6 out of 20 patents)

4. Karl-Heinz Nordsiek (6 out of 27 patents)

5. Wolfgang Kampf (6 out of 8 patents)

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