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. 3D Systems, Inc. (2 from 491 patents)
2 patents:
1. D423023 - Rapid prototype machine
2. D420371 - Rapid prototype machine