Average Co-Inventor Count = 2.86
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. Merck + Co., Inc. (5 from 4,770 patents)
5 patents:
1. 4080258 - Cell and vaccine production
2. 3976547 - Cell and vaccine production
3. 3965258 - Process for production of vaccines
4. 3959074 - Vaccine production
5. 3933585 - Process for production of vaccines