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Cologne, Germany

Clouth Gummiwerke Aktiengesellschaft

USPTO Granted Patents = 20

Forward Citations = 378

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20 inventors (with patents filed for the assignee):

Hermann Ortwein (8 out of 9 patents)

Hans Bohne (4 out of 4 patents)

Wilhelm Engst (3 out of 3 patents)

4. Artur Butterweck (3 out of 3 patents)

5. Erich Pothe (2 out of 3 patents)

6. Ewald Hartmann (2 out of 2 patents)

7. Hans Braitsch (2 out of 2 patents)

8. Hans-Jurgen Hansohm (2 out of 2 patents)

9. Michael Mohr (1 out of 5 patents)

10. Heinz Fischer (1 out of 1 patent)

11. Dieter Karlsohn (1 out of 1 patent)

12. Horst Weller (1 out of 1 patent)

13. Alexander Repczuk (1 out of 1 patent)

14. Hermann Spaar (1 out of 1 patent)

15. Hendrik De Bliek (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 6110863 - Absorption mat, especially for organic hydrocarbons (2000-08-29),

2. 5972470 - Absorption mat and method of making same (1999-10-26),

3. 5517894 - Explosion proof mat (1996-05-21),

4. 5487501 - Shock absorber component for railway track having pourous rubber (1996-01-30),

5. 5255484 - Method for fastening of elastomeric or insulating materials between two (1993-10-26),

6. 5173012 - Ground-borne noise and vibration damping (1992-12-22),

7. 4833968 - Double layer armor (1989-05-30),

8. 4738184 - Double layer armor (1988-04-19),

9. 4723706 - Rail support (1988-02-09),

10. 4720043 - Resilient ballast underlayment mat including nonwoven fiber fleece layers (1988-01-19),

11. 4696429 - Elastic mat for a ballast bed underlayment (1987-09-29),

12. 4637646 - Wheel set for rail vehicles (1987-01-20),

13. 4527736 - Elastomeric railway-rail mount (1985-07-09),

14. 4500037 - Railway road bed (1985-02-19),

15. 4349234 - Wear resistant wheel for endless track (1982-09-14),

Clouth Gummiwerke Aktiengesellschaft is a leading manufacturer of rubber products for various industries. Established in 1912, the company has a long history of providing high-quality rubber solutions for automotive, industrial, and medical applications. With state-of-the-art technology and a commitment to innovation, Clouth continues to deliver cutting-edge products to meet the needs of its customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

20 Patents

#34 in Cologne

#2,245 in Germany

#30,346 in the World

Cologne, Germany

Clouth Gummiwerke Aktiengesellschaft

Forward Citations = 378

20 inventors:

Hermann Ortwein (8 out of 9 patents)

Hans Bohne (4 out of 4 patents)

Wilhelm Engst (3 out of 3 patents)

4. Artur Butterweck (3 out of 3 patents)

5. Erich Pothe (2 out of 3 patents)

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