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. D450661 - Transcription foot control
2. D441758 - Front panel