Average Co-Inventor Count = 2.40
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. Filtrol Corporation (1 from 41 patents)
2. Harshaw/filtrol (1 from 4 patents)
2 patents:
1. 4512961 - Dealumination of faujasite-type zeolites using ion exchange resins
2. 4325847 - Use of additional alumina for extra zeolite stability in FCC catalyst