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Pforzheim, Germany

Witzenmann Gmbh

USPTO Granted Patents = 21

% Expired Patents = 33.3

EPO Patents = 52

Trademarks = 4

Forward Citations = 78

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45 inventors (with patents filed for the assignee):

Jorg Ludwig (3 out of 3 patents)

Bernd Seeger (3 out of 3 patents)

Matthias Farr (2 out of 2 patents)

4. Gerald Kolbe (2 out of 2 patents)

5. Rene Rosler (2 out of 2 patents)

6. Daniel Rothfuss (2 out of 2 patents)

7. Gerd Paulig (2 out of 2 patents)

8. Michael Pluschke (2 out of 4 patents)

9. David Ehrenberger (2 out of 2 patents)

10. Maximilian Ritter (2 out of 2 patents)

11. Bert Balmer (1 out of 2 patents)

12. Thomas Herr (1 out of 1 patent)

13. Stefan Keller (1 out of 1 patent)

14. Alexander Elsasser (1 out of 1 patent)

15. Nadine Hanakam (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 12709190 - COOLING-LINE SYSTEM OF A MODULAR CONSTRUCTION, IN PARTICULAR FOR BATTERIES OF ELECTRIC VEHICLES (2026-08-18),

2. 12512531 - Method for fluidically connecting functional modules that are temperature-controlled by means of a fluid, correspondingly temperature-controlled functional modules, and associated connection device (2025-12-30),

3. 12467488 - Fluid distribution method for producing a fluid distribution system (2025-11-11),

4. 11359754 - Flexible pipe element and method for inserting a seal in a flexible pipe element (2022-06-14),

5. 11015512 - Line element for compensating for expansions and/or relative movements (2021-05-25),

6. 10589331 - Method and device for separating wound tubes having welded parts (2020-03-17),

7. 10041620 - Line assembly (2018-08-07),

8. 10016847 - Method and device for cutting wound hoses (2018-07-10),

9. 9789432 - Flexible line segment for the exhaust system of an internal combustion engine (2017-10-17),

10. 9638359 - Strip wound hose (2017-05-02),

11. 9638358 - Duct element for the exhaust system of a motor vehicle (2017-05-02),

12. 9175793 - Attachment connection, and method of connecting a thin-walled hose line to a carbon-containing attachment part (2015-11-03),

13. 9039800 - Filter for a fluid-conducting pipe (2015-05-26),

14. 8793850 - Method for producing a tube with a bent progression as a transverse progression (2014-08-05),

15. 8668172 - Holding device for a sprinkler nozzle (2014-03-11),

Company Overview

Witzenmann GmbH, headquartered in Pforzheim, Germany, specializes in the development and manufacturing of flexible metal hoses, expansion joints, and other engineered solutions for various industries. The company focuses on providing innovative products that enhance safety and efficiency in applications ranging from automotive engineering to industrial machinery. With a commitment to quality and technological advancement, Witzenmann serves a global market, addressing the needs of diverse sectors through its extensive expertise in fluid and gas transfer systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

21 Patents

#3 in Pforzheim

#2,130 in Germany

#29,961 in the World

Pforzheim, Germany

Witzenmann Gmbh

Forward Citations = 78

45 inventors:

Jorg Ludwig (3 out of 3 patents)

Bernd Seeger (3 out of 3 patents)

Matthias Farr (2 out of 2 patents)

4. Gerald Kolbe (2 out of 2 patents)

5. Rene Rosler (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Witzenmann Gmbh. Retrieved from https://idiyas.com/company/witzenmann

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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