Average Co-Inventor Count = 3.93
ph-index = 4
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. Ligand Pharmaceuticals, Inc. (4 from 134 patents)
4 patents:
1. 5770378 - Tricyclic retinoids, methods for their production and use
2. 5770383 - Tricyclic retinoids, methods for their production and use
3. 5721103 - Trienoic retinoid compounds and methods
4. 5514821 - Ring-labeled retinoids and intermediates, and methods for their