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Imperial Oil Ltd.
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Edmonton, CA
Ticker Symbols
AMEX:IMO
PETROLEUM REFINING
Business Address
505 QUARRY PARK BOULEVARD S.E. CALGARY A0 T2C 5N1 1-800-567-3776
Mailing Address
505 QUARRY PARK BOULEVARD S.E. CALGARY A0 T2C 5N1
State Location
A0
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Patents Grants
last 30 patents
Information
Patent Grant
Method of using polysaccharides to stabilize microorganisms for ino...
Patent number
5,292,507
Issue date
Mar 8, 1994
Imperial Oil Limited
Robert Charley
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Grant
Transaction terminal system
Patent number
4,558,211
Issue date
Dec 10, 1985
Imperial Oil Limited
Patrick Berstein
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Prefabricated building units
Patent number
4,553,362
Issue date
Nov 19, 1985
Imperial Oil Limited
Victor Riley
E04 - BUILDING
Information
Patent Grant
Traction fluid lubricants derived from mineral oil
Patent number
4,533,778
Issue date
Aug 6, 1985
Imperial Oil Limited
Harry E. Henderson
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Traction fluid lubricants derived from coal tar
Patent number
4,387,256
Issue date
Jun 7, 1983
Imperial Oil Limited
Harry E. Henderson
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Dilution centrifuging of bitumen froth from the hot water process f...
Patent number
4,383,914
Issue date
May 17, 1983
Petro-Canada Exploration Inc.
Thaddeus E. Kizior
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Wireless link between vehicles and a stationary installation
Patent number
4,313,228
Issue date
Jan 26, 1982
Imperial Oil Limited
Patrick Berstein
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Filtration of hot water extraction process whole tailings
Patent number
4,225,433
Issue date
Sep 30, 1980
Petro-Canada Exploration Inc.
Joseph K. Liu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process aid addition in hot water process based on feed fines content
Patent number
4,201,656
Issue date
May 6, 1980
Petro-Canada Exploration Inc.
Emerson Sanford
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Non-ionic emulsifying release agent for bituminous sands conveyor belt
Patent number
4,197,937
Issue date
Apr 15, 1980
Petro-Canada Exploration Inc.
Emerson Sanford
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Process of treating bituminous sands conveyor belt with release agent
Patent number
4,172,811
Issue date
Oct 30, 1979
Petro-Canada Exploration Inc.
Emerson Sanford
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Process for secondary recovery of bitumen in hot water extraction o...
Patent number
4,172,025
Issue date
Oct 23, 1979
Petro-Canada Exploration Inc.
Kenneth Porteous
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method for concentrating heavy minerals in the solids tailings from...
Patent number
4,150,093
Issue date
Apr 17, 1979
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Victor Kaminsky
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Bitumen-sodium hydroxide-water emulsion release agent for bituminou...
Patent number
4,146,125
Issue date
Mar 27, 1979
Petro-Canada Exploration Inc.
Emerson Sanford
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method for concentrating heavy minerals in the solids tailings from...
Patent number
4,138,467
Issue date
Feb 6, 1979
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Victor Kaminsky
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Treatment of tumbler reject
Patent number
4,131,535
Issue date
Dec 26, 1978
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Kenneth Porteous
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Lewis acid-fluorine compounds of carbon
Patent number
4,128,499
Issue date
Dec 5, 1978
Imperial Oil Limited
A. David Cohen
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Deaerator circuit for bitumen froth
Patent number
4,116,809
Issue date
Sep 26, 1978
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Thaddeus Eugene Kizior
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Recovery of hydrocarbon from dilution centrifuging tailings
Patent number
4,111,789
Issue date
Sep 5, 1978
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Kenneth Porteous
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Dual control system for tailings outlet of primary separation vesse...
Patent number
4,107,029
Issue date
Aug 15, 1978
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Gordon Ronald Lorenz
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
System for handling the underflow from a primary separation vessel...
Patent number
4,105,537
Issue date
Aug 8, 1978
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Stanley McQuitty
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Purification of water for boiler
Patent number
4,098,691
Issue date
Jul 4, 1978
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
John Filby
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Electrode well for electrically heating a subterranean formation
Patent number
4,084,639
Issue date
Apr 18, 1978
Petro Canada Exploration Inc.
John C. Todd
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of producing viscous materials from subterranean formations
Patent number
4,084,637
Issue date
Apr 18, 1978
Petro Canada Exploration Inc.
John C. Todd
E21 - EARTH DRILLING MINING
Information
Patent Grant
Coking of bituminous solids with hot solids recycle
Patent number
4,082,646
Issue date
Apr 4, 1978
Petro-Canada Exploration Inc.
Peter Charles Flynn
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Capacitance system for heavy phase discharge of second stage centri...
Patent number
4,072,609
Issue date
Feb 7, 1978
Her Majesty the Queen in right of Canada, as represented by the Minister of E...
Thaddeus E. Kizior
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for reducing power loss associated with electrical heating o...
Patent number
4,010,799
Issue date
Mar 8, 1977
Petro-Canada Exploration Inc.
Loyd R. Kern
E21 - EARTH DRILLING MINING
Information
Patent Grant
Winding apparatus
Patent number
3,990,646
Issue date
Nov 9, 1976
Imperial Oil Limited
Leslie Salgo
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Winding apparatus
Patent number
3,989,582
Issue date
Nov 2, 1976
Imperial Oil Limited
Leslie Salgo
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74482939 - NUTREE
Serial number
74482939
Filing date
Jan 24, 1994
IMPERIAL OIL LIMITED
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74466624 - E S N
Serial number
74466624
Registration number
1908020
Filing date
Dec 3, 1993
Imperial Oil Limited
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74442344 - PRECISE
Serial number
74442344
Filing date
Sep 28, 1993
IMPERIAL OIL LIMITED
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74441030 - DURATION
Serial number
74441030
Registration number
1910683
Filing date
Sep 27, 1993
IMPERIAL OIL LIMITED
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74438729 - NUTREE
Serial number
74438729
Filing date
Sep 22, 1993
IMPERIAL OIL LIMITED
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74379483 - DURATION
Serial number
74379483
Filing date
Apr 14, 1993
IMPERIAL OIL
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74209189 - ESN
Serial number
74209189
Registration number
1817305
Filing date
Oct 3, 1991
IMPERIAL OIL LIMITED
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74066329 - TEKSCENT
Serial number
74066329
Registration number
1702647
Filing date
Jun 6, 1990
IMPERIAL OIL LIMITED
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73705932 - DIREXIT
Serial number
73705932
Registration number
1619274
Filing date
Jan 14, 1988
Imperial Oil Limited
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73547474 - PINPOINT 1000
Serial number
73547474
Registration number
1441836
Filing date
Jul 11, 1985
Imperial Oil Limited
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73523295 - 10 PLANNER
Serial number
73523295
Registration number
1441832
Filing date
Feb 21, 1985
Imperial Oil Limited
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73523190 - 10 PLANNER
Serial number
73523190
Registration number
1442794
Filing date
Feb 21, 1985
Imperial Oil Limited
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73405386 - THANKFUL TANKFUL
Serial number
73405386
Registration number
1293213
Filing date
Dec 9, 1982
Imperial Oil Limited
36 - Insurance