Average Co-Inventor Count = 4.36
ph-index = 4
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-brandt (4 from 100 patents)
4 patents:
1. 4039764 - Method for protecting a flexible record disc and disc so protected
2. 4038524 - Data carrier optically readable by transmission and method of
3. 4037251 - Data carrier optically read out by transmission, and method of
4. 4020278 - Data carrier for optical read-out