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Imperial Oil Limited

USPTO Granted Patents = 29

CIPO Patents = 13

Trademarks = 6

Forward Citations = 1,027

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46 inventors (with patents filed for the assignee):

Emerson Sanford (4 out of 4 patents)

Kenneth Porteous (3 out of 3 patents)

Thaddeus E Kizior (3 out of 3 patents)

4. Robert Shaw (3 out of 3 patents)

5. Leslie Salgo (2 out of 2 patents)

6. John C Todd (2 out of 4 patents)

7. Clinton R Smith (2 out of 10 patents)

8. Victor Kaminsky (2 out of 2 patents)

9. Lloyd W Trevoy (2 out of 3 patents)

10. Alvin Maskwa (2 out of 3 patents)

11. Patrick Berstein (2 out of 2 patents)

12. Harry E Henderson (2 out of 2 patents)

13. Lubomyr M Cymbalisty (1 out of 7 patents)

14. Thomas K Perkins (1 out of 34 patents)

15. A Gordon Alexander (1 out of 11 patents)

29 patents: Sort by Forward Citations

1. 5292507 - Method of using polysaccharides to stabilize microorganisms for (1994-03-08),

2. 4558211 - Transaction terminal system (1985-12-10),

3. 4553362 - Prefabricated building units (1985-11-19),

4. 4533778 - Traction fluid lubricants derived from mineral oil (1985-08-06),

5. 4387256 - Traction fluid lubricants derived from coal tar (1983-06-07),

6. 4383914 - Dilution centrifuging of bitumen froth from the hot water process for (1983-05-17),

7. 4313228 - Wireless link between vehicles and a stationary installation (1982-01-26),

8. 4225433 - Filtration of hot water extraction process whole tailings (1980-09-30),

9. 4201656 - Process aid addition in hot water process based on feed fines content (1980-05-06),

10. 4197937 - Non-ionic emulsifying release agent for bituminous sands conveyor belt (1980-04-15),

11. 4172811 - Process of treating bituminous sands conveyor belt with release agent (1979-10-30),

12. 4172025 - Process for secondary recovery of bitumen in hot water extraction of tar (1979-10-23),

13. 4150093 - Method for concentrating heavy minerals in the solids tailings from hot (1979-04-17),

14. 4146125 - Bitumen-sodium hydroxide-water emulsion release agent for bituminous (1979-03-27),

15. 4138467 - Method for concentrating heavy minerals in the solids tailings from hot (1979-02-06),

Imperial Oil Limited is a Canadian petroleum company focused on exploration, production, refining, and marketing of oil and gas products. With a rich history dating back over a century, Imperial is one of Canada's largest integrated energy companies. They operate a diverse portfolio of assets, including conventional oil and gas, oil sands, and petroleum refining facilities. Imperial Oil is committed to delivering reliable energy to meet the needs of their customers while upholding strong safety and environmental performance standards.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

29 Patents

#53 in

#453 in Canada

#21,844 in the World

Imperial Oil Limited

Forward Citations = 1,027

46 inventors:

Emerson Sanford (4 out of 4 patents)

Kenneth Porteous (3 out of 3 patents)

Thaddeus E Kizior (3 out of 3 patents)

4. Robert Shaw (3 out of 3 patents)

5. Leslie Salgo (2 out of 2 patents)

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