Average Co-Inventor Count = 1.64
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. Sony Corporation (9 from 58,131 patents)
9 patents:
1. D350129 - Cordless telephone
2. D347222 - Relay machine for cordless telephone
3. D330553 - Clock radio
4. D326653 - Radio receiver
5. D324683 - Tape player
6. D323155 - Hand held data input terminal for video monitor
7. D323166 - Reconfigurable radio receiver
8. D319229 - Television receiver
9. D318667 - Tape player