Average Co-Inventor Count = 1.33
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. De Beers Centenary Ag (4 from 108 patents)
4 patents:
1. D635878 - Jewelry piercing
2. D610034 - Setting, shank and ring
3. D602807 - Jewelry setting
4. D602802 - Ring shank