Average Co-Inventor Count = 1.71
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. (4 from 159 patents)
4 patents:
1. 5265075 - Voice processing system with editable voice files
2. 4663680 - Mounting frame for microcassette changer
3. 4056835 - Head support and eject mechanism for recording and/or playback apparatus
4. 4041890 - Indexing apparatus for a record and/or playback device