PK

Per Ivar KARLSEN

YA Yara International Asa: 1 patents #53 of 134Top 40%
📍 Langangen, NO: #2 of 4 inventorsTop 50%
Overall (All Time): #3,330,821 of 4,157,543Top 85%
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7563419 Method and device for supporting catalyst gauzes in an ammonia oxidation burner Halvor ØIEN, Leif Kåre Grønstad, Øystein Nirisen, Magne Slåen 2009-07-21