Average Co-Inventor Count = 4.00
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. Columbia University (2 from 2,489 patents)
2 patents:
1. 6566092 - DNA encoding a vertebrate homolog of hedgehog, Vhh-1, expressed by the notochord, and uses thereof
2. 6235885 - Rat hedgehog protein-1 (Vhh-1)