Forward Citations = 58

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5 inventors (with patents filed for the assignee):

Harald Knoblauch (2 out of 3 patents)

Frank Schlag (1 out of 3 patents)

Bernd Glashoff (1 out of 1 patent)

4. Werner Huttenlocher (1 out of 2 patents)

5. Michael John-Hurlow (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 6170562 - Device for the exchange of thermal energy between the interior of a housing and an environment (2001-01-09),

2. 6110245 - Filtering ventilator or outlet filter (2000-08-29),

3. 5655381 - Cooling device for cooling components and batteries in a switch cabinet (1997-08-12),

4. D370862 - Alarm (1996-06-18),

Otto Pfannenberg Elektro-spezial-geratebau Gmbh is a leading manufacturer of electro-technical components and thermal management solutions for industries worldwide. With over 60 years of experience, the company offers a wide range of products including signal devices, industrial cooling units, and thermal management solutions to ensure the safety and reliability of electrical equipment in various applications.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

4 Patents

#140 in Hamburg

#6,921 in Germany

Hamburg, Germany

Otto Pfannenberg Elektro-Spezial-Geratebau Gmbh