Average Co-Inventor Count = 3.00
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. Sony Corporation (3 from 58,129 patents)
2. Sony Electronics Inc (3 from 2,335 patents)
3 patents:
1. 7502731 - System and method for performing speech recognition by utilizing a multi-language dictionary
2. 7353172 - System and method for cantonese speech recognition using an optimized phone set
3. 7181396 - System and method for speech recognition utilizing a merged dictionary