Average Co-Inventor Count = 4.17
ph-index = 5
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. Gersan Establishment (5 from 25 patents)
2. De Beers UK Ltd (25 patents)
5 patents:
1. 6014208 - Examining a diamond
2. 5883388 - Examining a diamond
3. 5880504 - Examining a diamond
4. 5811824 - Method and an apparatus for testing whether a diamond has a layer of
5. 5603414 - Detecting diamonds in a rock sample