Average Co-Inventor Count = 4.00
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. Schering Corporation (2 from 1,829 patents)
2 patents:
1. D267587 - Plunger rod/needle protector for a hypodermic syringe
2. 4317446 - Prefilled disposable syringe