Average Co-Inventor Count = 9.00
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. Apple Inc. (3 from 40,816 patents)
3 patents:
1. 10521812 - Method and system for upgrading a previously purchased media asset
2. 9665878 - Method and system for upgrading a previously purchased media asset
3. 8984442 - Method and system for upgrading a previously purchased media asset