Average Co-Inventor Count = 3.00
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. Merck + Co., Inc. (3 from 4,770 patents)
3 patents:
1. 5362312 - Carrier fluid for the suspension and delivery of water soluble polymers
2. 5290768 - Welan gum-ethylene glycol insulating compositions
3. 4717488 - Spacer fluid