Average Co-Inventor Count = 2.00
ph-index = 4
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. Sony Corporation (6 from 58,130 patents)
6 patents:
1. D344454 - Packaging wrapper
2. D344452 - Packaging wrapper
3. D344451 - Packaging wrapper
4. D344453 - Packaging wrapper
5. D340575 - Case for a magnetic tape cassette
6. D335575 - Case for magnetic tape cassette