Staufen, Switzerland

Optical Additives Gmbh


USPTO Granted Patents = 1

Forward Citations = 1

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5 inventors (with patents filed for the assignee):

goldMedal Andreas Kunzmann (1 out of 4 patents)

silverMedal Hans Joachim Metz (1 out of 35 patents)

bronzeMedal Gion Calzaferri (1 out of 9 patents)

4 Stephane Suarez (1 out of 1 patent)

5 André Devaux (1 out of 1 patent)


1 patent:

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USPTO Data Jan 1 1976 - Dec 2 2025

1 Patents

#1 in Staufen

#4,312 in Switzerland

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Staufen, Switzerland
Forward Citations = 1

5 inventors:

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