Average Co-Inventor Count = 4.00
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. First Act Inc. (2 from 71 patents)
2 patents:
1. 6612483 - Display box
2. 6353165 - String instrument with protective string cap