PD

PATRICK DOUGAN

AE Alterra Energy: 1 patents #15 of 58Top 30%
CP Canadian Occidental Petroleum: 1 patents #21 of 52Top 45%
EL Esso Resources Canada Limited: 1 patents #15 of 45Top 35%
GL Gulf Canada Resources Limited: 1 patents #17 of 53Top 35%
HL Hbog-Oil Sands Limited: 1 patents #8 of 29Top 30%
PL Pan Canadian Petroleum Limited: 1 patents #19 of 50Top 40%
PE Petro-Canada: 1 patents #29 of 85Top 35%
Overall (All Time): #3,851,804 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5118408 Reducing the water and solids contents of bitumen froth moving through the launder of a spontaneous flotation vessel Wayne B. Jansen, Gordon Thompson, Malcolm S. Betts, Gordon R. Larson 1992-06-02