Average Co-Inventor Count = 2.00
ph-index = 3
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. Amgen Inc. (3 from 1,971 patents)
3 patents:
1. 7556623 - Tool for use with a medication vial and/or a syringe
2. D530817 - Syringe tool
3. D530009 - Syringe tool