Helsinki, Finland

Merger Recipient Abb Oy


USPTO Granted Patents = 1

Forward Citations = 5

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4 inventors (with patents filed for the assignee):

goldMedal Esa Virtanen (1 out of 8 patents)

silverMedal Torvald Haldin (1 out of 1 patent)

bronzeMedal Karl Engman (1 out of 1 patent)

4 Johan Backa (1 out of 1 patent)


1 patent:

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USPTO Data Jan 1 1976 - Dec 2 2025

1 Patents

#321 in Helsinki

#1,468 in Finland

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Helsinki, Finland
Forward Citations = 5

4 inventors:

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