Average Co-Inventor Count = 3.00
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. Lyrrus Inc. (3 from 4 patents)
3 patents:
1. 5567903 - Transducer assembly for a stringed musical instrument
2. 5408911 - Musical instrument string
3. 5270475 - Electronic music system