Average Co-Inventor Count = 4.00
ph-index = 6
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. Matsushita Electric Industrial Co., Ltd. (6 from 27,375 patents)
6 patents:
1. D526002 - Cash register
2. D507567 - Electronic information displaying device
3. D495693 - Electronic information displaying device
4. D494968 - Electronic information displaying device
5. D490795 - Telephone set
6. D319641 - Telephone