Assignee

HEAVY OIL PROCESS INC

US·2 granted patents·302 citations·filing 1981–1981

Technology mixE21B2 E21C1

Top patents by PatentIndex Score

2 records

0196US4434849AMethod and apparatus for recovering high viscosity oilsHEAVY OIL PROCESS INC·Filed 1981·Granted Mar 6, 1984·173 cites·15 claims
0294US4410216AMethod for recovering high viscosity oilsHEAVY OIL PROCESS INC·Filed 1981·Granted Oct 18, 1983·129 cites·14 claims

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