Average Co-Inventor Count = 2.67
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. Nipro Corporation (2 from 374 patents)
2 patents:
1. D780913 - Syringe barrel
2. 6491669 - Protector for liquid drug administration needle