Average Co-Inventor Count = 1.80
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. (2 from 159 patents)
2. Other (1 from 832,843 patents)
3 patents:
1. 4666158 - Adjustable bowling release positioner
2. D246039 - Dictation machine or similar article
3. D244700 - Remote control microphone or similar article