For the Inventor, By the Inventor

Enter assignee name

Roskilde, Denmark

Sonion Tech A/s

USPTO Granted Patents = 2

Forward Citations = 108

Loading Chart...

Loading Chart...

4 inventors (with patents filed for the assignee):

Claus Erdmann Fürst (1 out of 42 patents)

Tomasz Marczak (1 out of 1 patent)

Michael Deruginsky (1 out of 1 patent)

4. Soren Ravnkilde (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 6888408 - Preamplifier for two terminal electret condenser microphones (2005-05-03),

2. 6555768 - 3D roller key (2003-04-29),

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#23 in Roskilde

#909 in Denmark

Roskilde, Denmark

Sonion Tech A/s

Forward Citations = 108

4 inventors:

Claus Erdmann Fürst (1 out of 42 patents)

Tomasz Marczak (1 out of 1 patent)

Michael Deruginsky (1 out of 1 patent)

4. Soren Ravnkilde (1 out of 1 patent)

Please report any incorrect information to support@idiyas.com

Loading…