Average Co-Inventor Count = 5.00
ph-index = 5
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. (5 from 1,970 patents)
5 patents:
1. D1072240 - Handheld drug delivery device
2. D992109 - Handheld drug delivery device
3. D990668 - Handheld drug delivery device
4. D974547 - Handheld drug delivery device
5. D973866 - Handheld drug delivery device