Average Co-Inventor Count = 4.00
ph-index = 1
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. Etat Francais (1 from 132 patents)
2. Telecommunications Radioelectriques Et Telephoniques T.r.t. (1 from 70 patents)
1 patent:
1. 3952164 - Vocoder system using delta modulation