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. Centre National De La Recherche Scientifique (2 from 5,076 patents)
2. Technofirst (2 from 8 patents)
3 patents:
1. 5987144 - Personal active noise cancellation method and device having invariant
2. 5943641 - Method and device for recovering a wanted acoustic signal from a
3. 4833719 - Method and apparatus for attentuating external origin noise reaching the