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Witten, Germany

Entwicklungsgesellschaft Fur Akustik (efa) MIT Beschrankter Haftung

USPTO Granted Patents = 1

EPO Patents = 1

Trademarks = 2

Forward Citations = 8

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3 inventors (with patents filed for the assignee):

Volkmar Schulze (1 out of 22 patents)

Volker Kursch (1 out of 5 patents)

Hans-Peter Keller (1 out of 3 patents)

4. Herbert Vollmert (1 patent)

5. Norbert Nicolai (0 patent)

6. Johannes Jurk (0 patent)

7. Günter Liebner (0 patent)

8. Gabi Brade-Scholz (0 patent)

1 patent: Sort by Forward Citations

1. 7954596 - Acoustically and thermally acting insulation (2011-06-07),

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#27 in Witten

#15,083 in Germany

Witten, Germany

Entwicklungsgesellschaft Fur Akustik (efa) MIT Beschrankter Haftung

Forward Citations = 8

3 inventors:

Volkmar Schulze (1 out of 22 patents)

Volker Kursch (1 out of 5 patents)

Hans-Peter Keller (1 out of 3 patents)

4. Herbert Vollmert (1 patent)

5. Norbert Nicolai (0 patent)

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