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. Engelhard Corporation (2 from 623 patents)
2. Englehard Corporation (1 from 8 patents)
3 patents:
1. 6346145 - Paints containing low sheen opacifying pigments obtained by flux calcination of kaolin clay
2. 6136086 - Low sheen opacifying pigments and manufacture thereof by calcination of
3. 6027561 - Cement-based compositions