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Koeln-Ehrenfeld, Germany

Gerhard Collardin Gmbh

USPTO Granted Patents = 16

Forward Citations = 106

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31 inventors (with patents filed for the assignee):

Roland Morlock (4 out of 8 patents)

Karl-Heinz Gottwald (3 out of 11 patents)

Reinhard Opitz (3 out of 6 patents)

4. Raschad Mady (3 out of 6 patents)

5. Lutz Schellenberg (3 out of 3 patents)

6. Kurt Hosemann (2 out of 4 patents)

7. Hans Gotta (2 out of 2 patents)

8. Heinz Portz (2 out of 2 patents)

9. Matthias Hamacher (2 out of 2 patents)

10. Bashir M Ahmed (1 out of 26 patents)

11. Hubert Harth (1 out of 13 patents)

12. Dieter Geruhn (1 out of 3 patents)

13. Wolf-Achim Roland (1 out of 11 patents)

14. Willi Wuest (1 out of 26 patents)

15. Jobst H Meyer Zu Bexten (1 out of 2 patents)

16 patents: Sort by Forward Citations

1. 5026440 - Chromium free treatment before coating metal surfaces (1991-06-25),

2. 4968360 - Process for desludging phosphating baths and device for carrying out (1990-11-06),

3. 4956016 - Anticorrosive agents and use thereof (1990-09-11),

4. 4944813 - Process for phosphating metal surfaces (1990-07-31),

5. 4775427 - Phosphate conversion coatings for composite metals (1988-10-04),

6. 4762572 - Process for phosphating electrolytically zinc-coated metals (1988-08-09),

7. 4761189 - Process and aqueous compositions for treating metal surfaces (1988-08-02),

8. 4680064 - Phosphate conversion coating accelerators (1987-07-14),

9. 4639319 - Electrolyte stabilization of latices (1987-01-27),

10. 4636264 - Autodeposition post-bath rinse process (1987-01-13),

11. 4622078 - Process for the zinc/calcium phosphatizing of metal surfaces at low (1986-11-11),

12. 4565611 - Aqueous electrolytes and method for electrodepositing nickel-cobalt (1986-01-21),

13. 4497668 - Phosphating process for zinc-plated metals (1985-02-05),

14. 4384900 - Method of treating metal surfaces prior to phosphatization (1983-05-24),

15. 4326894 - Process for the production of conversion layers on metal surfaces by the (1982-04-27),

Company Overview

Gerhard Collardin GmbH, located in Koeln-Ehrenfeld, specializes in the development and manufacturing of high-quality precision components and systems. The company focuses on innovative solutions in the fields of mechanical engineering and automation technology, catering to a diverse range of industries. With a commitment to quality and technological advancement, Gerhard Collardin GmbH plays a significant role in enhancing operational efficiencies and driving progress within its sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

16 Patents

#83 in Koeln-Ehrenfeld

#2,625 in Germany

#37,831 in the World

Koeln-Ehrenfeld, Germany

Gerhard Collardin Gmbh

Forward Citations = 106

31 inventors:

Roland Morlock (4 out of 8 patents)

Karl-Heinz Gottwald (3 out of 11 patents)

Reinhard Opitz (3 out of 6 patents)

4. Raschad Mady (3 out of 6 patents)

5. Lutz Schellenberg (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gerhard Collardin Gmbh. Retrieved from https://idiyas.com/company/gerhard-collardin

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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