Average Co-Inventor Count = 2.18
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. Matsushita Electric Industrial Co., Ltd. (4 from 27,375 patents)
4 patents:
1. D265821 - Combined cassette recorder and radio receiver
2. D262536 - Radio receiver
3. D261766 - Digital clock radio
4. D259788 - Clock radio