Average Co-Inventor Count = 1.28
ph-index = 7
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 (10 from 58,129 patents)
10 patents:
1. 7502220 - Portable-type display device
2. D435535 - Combined disc player, radio receiver and tape player
3. D424058 - Combined disc player, radio receiver and tape player
4. D384958 - Earphone with microphone
5. D376800 - Radio receiver
6. D372475 - Tape player combined with radio tuner
7. D370912 - Tape player
8. D368716 - Headphone
9. D367756 - Portable carrying grip with belt
10. D360194 - Graphic data input machine combined with a printer