Average Co-Inventor Count = 7.00
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. Amgen Inc. (4 from 1,982 patents)
4 patents:
1. D1106445 - Handheld drug delivery device
2. D1097129 - Handheld drug delivery device
3. D1073061 - Handheld drug delivery device
4. D1071156 - Handheld drug delivery device