Average Co-Inventor Count = 2.40
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. Deutschetelekom Ag (2 from 701 patents)
2 patents:
1. 9208787 - Method and device for the natural-language recognition of a vocal expression
2. 9009056 - Voice dialog system with reject avoidance process