For the Inventor, By the Inventor

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Erfurt, Germany

Iosono Gmbh

USPTO Granted Patents = 2

Trademarks = 1

Forward Citations = 2

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6 inventors (with patents filed for the assignee):

Robert Steffens (2 out of 6 patents)

Frank Melchior (2 out of 11 patents)

Martin Dausel (1 out of 6 patents)

4. Andreas Partzsch (1 out of 1 patent)

5. Uwe Michaelis (1 out of 1 patent)

6. Andreas Graefe (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 9402144 - Apparatus for changing an audio scene and an apparatus for generating a directional function (2016-07-26),

2. 8462966 - Apparatus and method for calculating filter coefficients for a predefined loudspeaker arrangement (2013-06-11),

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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#6 in Erfurt

#10,552 in Germany

Erfurt, Germany

Iosono Gmbh

Forward Citations = 2

6 inventors:

Robert Steffens (2 out of 6 patents)

Frank Melchior (2 out of 11 patents)

Martin Dausel (1 out of 6 patents)

4. Andreas Partzsch (1 out of 1 patent)

5. Uwe Michaelis (1 out of 1 patent)

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