For the Inventor, By the Inventor

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Tampere, Finland

Oy Epiroc Drilling Tools Ab

USPTO Granted Patents = 2

EPO Patents = 6

Forward Citations = 18

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1 inventor (with patents filed for the assignee):

Kai Gylling (2 out of 6 patents)

Juhani Välisalo (3 patents)

Antti Virjula (0 patent)

2 patents: Sort by Forward Citations

1. 10428603 - Method for putting together a down-the-hole drilling apparatus for plastic pipe drilling and a down-the-hole drilling apparatus (2019-10-01),

2. 10024108 - Drilling device (2018-07-17),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#76 in Tampere

#1,002 in Finland

Tampere, Finland

Oy Epiroc Drilling Tools Ab

Forward Citations = 18

1 inventor:

Kai Gylling (2 out of 6 patents)

Juhani Välisalo (3 patents)

Antti Virjula (0 patent)

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