PV

Pirkko Virta

KO Kemira Oy: 4 patents #1 of 84Top 2%
📍 Utajärvi, FI: #3 of 16 inventorsTop 20%
Overall (All Time): #1,290,755 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5580533 Catalyst and process for purifying diesel exhaust gases Matti Kivioja, Sointu Ravola, Thomas Benedict Slotte, Teuvo Maunula, Matti H ark onen 1996-12-03
5534476 Use of a super alloy as a substrate for catalysts Marjo Luoma, Keijo Torkkell, Reijo Lylykangas 1996-07-09
5071634 Process for the preparation of hydrogen peroxide (I) Teuvo Maunula, Eva-Liisa Mustonen, Ilkka Turunen 1991-12-10
4756801 Paper-making method and a combination of ingredients to be used in it Olli Jokinen, Lars Petander 1988-07-12