Average Co-Inventor Count = 2.00
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. Sun Drilling Products Corporation (2 from 40 patents)
2. Other (1 from 832,718 patents)
3 patents:
1. 5942467 - Drilling fluid system containing a combination of hydrophilic carbon
2. 5891832 - Drilling fluid additive containing a fish oil/glycol mixture and related
3. 5843872 - Drilling fluid system and related methods