Average Co-Inventor Count = 4.00
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. Thomson-csf (2 from 2,692 patents)
2 patents:
1. 4607145 - Electroacoustic transducer with a piezoelectric diaphragm
2. 4535205 - Electroacoustic transducer of the piezoelectric polymer type