PH

Preben Hasselgard

DA Den Norske Stats Oljeselskap A.S.: 2 patents #37 of 220Top 20%
Overall (All Time): #2,250,789 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5922925 Catalyst, and processes for dehydrogenating dehydrogenatable hydrocarbons Duncan E. Akporiaye, Morten Ronnekleiv, Age Solbakken 1999-07-13
5817596 Catalyst, and processes for dehydrogenating dehydrogenatable hydrocarbons Duncan E. Akporiaye, Morten Ronnekleiv 1998-10-06