Average Co-Inventor Count = 1.60
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Pan Canadian Petroleum Limited (4 from 31 patents)
2. Gulf Canada Corporation (4 from 30 patents)
3. Esso Resources Canada Limited (4 from 30 patents)
4. Alberta Energy Company Ltd. (4 from 25 patents)
5. Petro-canada (2 from 52 patents)
6. Canadian Occidental Petroleum Ltd. (2 from 36 patents)
7. Canada-cities Service, Ltd. (2 from 28 patents)
8. Petro-canada Exploration Inc. (2 from 22 patents)
9. Hbog-oil Sands Limited Partnership (2 from 13 patents)
10. Hudson's Bay Oil and Gas Company Limited (2 from 10 patents)
11. Petrofina Canada Inc. (2 from 5 patents)
12. Her Majesty the Queen in Right of Canada, As Represented by the Minister (1 from 536 patents)
13. Her Majesty the Queen in Right of the Province of Alberta, As (1 from 8 patents)
14. Her Majesty the Queen in Right of the Province of Alberta As Represented (1 from 8 patents)
15. Her Majesty the Queen in Right of the Province of Alberta (1 from 3 patents)
4 patents:
1. 5009773 - Monitoring surfactant content to control hot water process for tar sand
2. 4637417 - Use of a submersible viscometer in the primary separation step of the
3. 4474616 - Blending tar sands to provide feedstocks for hot water process
4. 4462892 - Control of process aid used in hot water process for extraction of