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. Pfizer Corporation (2 from 4,455 patents)
2 patents:
1. 6485904 - DNA encoding a plasminogen activating protein
2. 5840315 - Vaccines based on streptokinase