Average Co-Inventor Count = 1.33
ph-index = 2
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. Alberta Oil Sands Technology and Research Authority (1 from 48 patents)
2. Ortech Corporation (1 from 10 patents)
2 patents:
1. 5055179 - Upgrading heavy oil
2. 4487264 - Use of hydrogen-free carbon monoxide with steam in recovery of heavy oil