RH

Ritva Heikkinen

📍 Kiiminki, FI: #13 of 30 inventorsTop 45%
Overall (All Time): #3,235,139 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8337762 Substrate having porous sheet(s) for treating exhaust gases of combustion engines Aulis Vakkilainen, Reijo Lylykangas, Teuvo Maunula, Matti Härkönen, Ari Lievonen 2012-12-25