Average Co-Inventor Count = 4.00
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. Hoffmann-la Roche Inc. (1 from 4,942 patents)
2. The United States of America As Represented by the Department of (1 from 28 patents)
1 patent:
1. 4929609 - 25, 28-dihydroxyergocalciferol and 1,25,28-trihydroxyergocalciferol