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. Shell Oil Comapny (3 from 7,645 patents)
3 patents:
1. 4921897 - Flame retardant composition containing zinc borate
2. 4885328 - Flame retardant compositions
3. 4885318 - Polyketone flame retardant composition