HF

Harald Fretheim

AA Abb Schweiz Ag: 3 patents #607 of 3,274Top 20%
📍 Aurskog, NO: #1 of 2 inventorsTop 50%
Overall (All Time): #1,317,327 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12300978 Subsea substation system with one enclosure having separate thermal zones Oistein Martinsen, Stian Ingebrigtsen, Vitor Moritsugu 2025-05-13
12224572 Power collection system for subsea transfer of power from offshore power generation units Oistein Martinsen, Vitor Moritsugu, Stian Ingebrigtsen, Tor-Eivind Moen 2025-02-11
9906173 Method for estimating motor parameter in a load commutated inverter arrangement, and a load commutated inverter arrangement therefor Jan Wiik, Edgar Jellum, Trond Haugen 2018-02-27