Average Co-Inventor Count = 2.00
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. British Gas Plc (2 from 304 patents)
2 patents:
1. 6042727 - Porous amorphous silica-alumina refractory oxides, their preparation and
2. 5871646 - Porous amorphous silica-alumina refractory oxides, their preparation and