IV

Ilkka Virkajärvi

DO Ductor Oy: 1 patents #10 of 15Top 70%
Overall (All Time): #2,948,583 of 4,157,543Top 75%
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Patent #TitleCo-InventorsDate
9670508 Biogas process with nutrient recovery Ari Ketola, Kerttu Koskenniemi, Minna Lahtinen, Jarkko Nummela, Nina Virolainen 2017-06-06