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. Zymogenetics, Inc. (1 from 723 patents)
2. Pharmaceutical Proteins Limited (1 from 4 patents)
1 patent:
1. 5639940 - Production of fibrinogen in transgenic animals