Average Co-Inventor Count = 5.29
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. Dictaphone Corporation. (3 from 159 patents)
3 patents:
1. 6671567 - Voice file management in portable digital audio recorder
2. 6038199 - Portable digital audio recorder with adaptive control configurations
3. 5153905 - Priority voice message delivery system