Average Co-Inventor Count = 4.29
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. Calfrac Well Services Ltd. (3 from 11 patents)
2. Chemergy Ltd. (3 from 7 patents)
3 patents:
1. 7399732 - Fracturing fluid containing amphoteric glycinate surfactant
2. 6844297 - Fracturing method using aqueous or acid based fluids
3. 6838418 - Fracturing fluid