Average Co-Inventor Count = 2.00
ph-index = 1
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. Imperial Oil Limited (1 from 29 patents)
2. Canada-cities Service, Ltd. (1 from 28 patents)
3. Gulf Oil Canada Ltd. (1 from 22 patents)
4. Petro-canada Exploration Inc. (1 from 22 patents)
5. Her Majesty the Queen in Right of the Province of Alberta, Government of (1 from 21 patents)
6. Ontario Energy Corporation (1 from 17 patents)
1 patent:
1. 4172025 - Process for secondary recovery of bitumen in hot water extraction of tar