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Cologne, Germany

Ec Erdolchemie Gmbh

USPTO Granted Patents = 33

Forward Citations = 222

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62 inventors (with patents filed for the assignee):

Bernhard Schleppinghoff (14 out of 16 patents)

Jens Herwig (11 out of 15 patents)

Hans-Volker Scheef (7 out of 8 patents)

4. Joachim Grub (5 out of 8 patents)

5. Arnd Stuwe (5 out of 9 patents)

6. Christian Gabel (5 out of 7 patents)

7. Horst Reinhardt (4 out of 4 patents)

8. Hans-Dieter Kohler (4 out of 5 patents)

9. Herbert Tschorn (3 out of 3 patents)

10. Ludwig Bruns (3 out of 5 patents)

11. Hans-Jurgen Bister (2 out of 3 patents)

12. Werner Volprecht (2 out of 2 patents)

13. Matthias Baum (2 out of 2 patents)

14. Mathias Lux (2 out of 2 patents)

15. Peter M Lange (2 out of 26 patents)

33 patents: Sort by Forward Citations

1. 6951967 - Process for the preparation of tertiary alcohols by the hydration of tertiary olefins in a reactive rectification using a structured multi-purpose packing (2005-10-04),

2. 6264799 - Process for isolating cyclopentane and/or cyclopentene (2001-07-24),

3. 6175049 - Process for the production of 1, 2-butadiene (2001-01-16),

4. 6087299 - Silver-containing supported catalysts and catalyst intermediates, (2000-07-11),

5. 6074982 - Catalyst agent for etherifying, hydrogenating and isomerizing crude . (2000-06-13),

6. 5969205 - Process for preparing C.sub.4 --C.sub.6 --alkenes having an internal (1999-10-19),

7. 5789643 - Process for oligomerizing I-butene comprising hydroisomerizing portion (1998-08-04),

8. 5378668 - Process for reactivating ammoxidation catalysts (1995-01-03),

9. 5141732 - Process for the removal of ammonium sulphate from tarrich waste streams (1992-08-25),

10. 5141525 - Process for producing high-octane, low-olefin motor fuels and motor fuel (1992-08-25),

11. 5095164 - Process for cleaving alkyl tert.-alkyl ethers (1992-03-10),

12. 5091093 - Process for purifying acrylonitrile effluent (1992-02-25),

13. 5008466 - Process for the isomerization of alkenes having a terminal double bond (1991-04-16),

14. 4960961 - Process for the preparation of tert.-amyl alcohol (TAA) (1990-10-02),

15. 4950820 - Process for the hydrogenation of olefinic hydrocarbons in hydrocarbon (1990-08-21),

EC Erdolchemie GmbH is a leading chemical manufacturing company specializing in the production of petroleum-based products. With over 50 years of experience, we offer a wide range of high-quality chemical products for various industries including automotive, aerospace, and construction. Our state-of-the-art facilities, advanced technology, and dedicated team ensure consistent product quality and customer satisfaction. Visit our website for more information about our products and services.

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Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

33 Patents

#22 in Cologne

#1,510 in Germany

#19,529 in the World

Cologne, Germany

Ec Erdolchemie Gmbh

Forward Citations = 222

62 inventors:

Bernhard Schleppinghoff (14 out of 16 patents)

Jens Herwig (11 out of 15 patents)

Hans-Volker Scheef (7 out of 8 patents)

4. Joachim Grub (5 out of 8 patents)

5. Arnd Stuwe (5 out of 9 patents)

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