Average Co-Inventor Count = 1.33
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. Sharp Corporation (4 from 847 patents)
4 patents:
1. D285574 - Electronic calculator
2. D285568 - Printer
3. D284374 - Facsimile machine
4. D284201 - Electronic calculator