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For the Inventor, By the Inventor

Espoo, Finland

Hefio Oy


USPTO Granted Patents = 1

% Expired Patents = 100.0

Forward Citations = 0

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1 inventor (with patents filed for the assignee):

goldMedal Marko Hiipakka (1 out of 3 patents)


1 patent:

1. 10667031 - Earpiece for acoustical source and load modeling (2020-05-26),
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USPTO Data Jan 1 1976 - Sep 29 2026

1 Patents

#219 in Espoo

#1,499 in Finland

Espoo, FI
Espoo, Finland

Hefio Oy

Forward Citations = 0

1 inventor:

goldMedal Marko Hiipakka (1 out of 3 patents)

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