Average Co-Inventor Count = 2.46
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. Pfizer Corporation (4 from 4,455 patents)
4 patents:
1. 6867230 - Hygromycin A derivatives
2. 6562792 - Hygromycin derivatives
3. 6342497 - 2″-deoxy hygromycin derivatives
4. 6300316 - C-4 substituted macrolide antibiotics