Average Co-Inventor Count = 3.83
ph-index = 1
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. Nippon Crucible Co., Ltd. (2 from 23 patents)
2. Unicharm Corporation (1 from 1,645 patents)
3 patents:
1. 10202230 - Animal litter box package body
2. 8460601 - Vessel for molten metal
3. D654520 - Crucible for melting