EL

Esko Lopperi

OS Oy Safematic: 2 patents #2 of 13Top 20%
📍 Jyväskylä, FI: #100 of 454 inventorsTop 25%
Overall (All Time): #1,666,246 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5072949 Liquid-flushed seal for rotating shaft with vacuum providing leakage controlling choke in flushing liquid supply conduit 1991-12-17
4773655 Slide ring seal Markku Lummila, Esa Salovaara, Juhani Ljokkoi, Juhani Kuusela 1988-09-27
4700953 Slide-ring seal Juhani Kuusela, Markku Lummila, Pertti Saksala, Esa Salovaara, Tuomo Suhonen 1987-10-20