Average Co-Inventor Count = 1.50
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. (3 from 4,942 patents)
3 patents:
1. 5003090 - Process for the preparation of benzopyrans
2. 4931574 - Process for the preparation of benzopyrans
3. 4098801 - Synthesis of 1.alpha.-hydroxylated derivatives of cholesterol