Gulf Canada Limited
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 23, 1991 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 218 Total Citation Count
- Nov 01, 1977 Earliest Filing
- 14 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5009773 Monitoring surfactant content to control hot water process for tar sandExpiredJan 07, 87Apr 23, 91[C10E]
4954254 Method and apparatus for separation of heterogeneous phasesExpiredMar 08, 89Sep 04, 90[B01D]
4776949 Recycle of secondary froth in the hot water process for extracting bitumen from tar sandExpiredDec 05, 85Oct 11, 88[C10G]
4642223 Method for removing spent catalyst from a reactor tower and assembly for facilitating sameExpiredApr 02, 85Feb 10, 87[B01J]
4637417 Use of a submersible viscometer in the primary separation step of the hot water process for recovery of bitumen from tar sandExpiredMay 03, 85Jan 20, 87[F17D]
4545892 Treatment of primary tailings and middlings from the hot water extraction process for recovering bitumen from tar sandExpiredApr 15, 85Oct 08, 85[C10G]
4474616 Blending tar sands to provide feedstocks for hot water processExpiredDec 13, 83Oct 02, 84[C10G]
4462892 Control of process aid used in hot water process for extraction of bitumen from tar sandExpiredMar 17, 83Jul 31, 84[C10G]
4383914 Dilution centrifuging of bitumen froth from the hot water process for tar sandExpiredMay 18, 81May 17, 83[C10G]
4225433 Filtration of hot water extraction process whole tailingsExpiredOct 02, 78Sep 30, 80[C02F, B01D]
4201656 Process aid addition in hot water process based on feed fines contentExpiredFeb 21, 79May 06, 80[C10G]
4197937 Non-ionic emulsifying release agent for bituminous sands conveyor beltExpiredNov 01, 77Apr 15, 80[B65G]
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