Average Co-Inventor Count = 2.00
ph-index = 3
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. Other (3 from 833,002 patents)
2. Sony Corporation (1 from 58,132 patents)
3. Sony Electronics Inc (1 from 2,335 patents)
4 patents:
1. 7490129 - Methods and apparatus for transmitting prioritized electronic mail messages
2. 6820113 - Methods and apparatus for transmitting prioritized electronic mail messages
3. 6442593 - Methods and apparatus for transmitting prioritized electronic mail messages
4. 6314454 - Method and apparatus for certified electronic mail messages