Average Co-Inventor Count = 5.00
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. Dictaphone Corporation. (2 from 159 patents)
2 patents:
1. 4860339 - Programmable telephone/dictation terminal and method of operating same
2. 4817127 - Modular dictation/transcription system