Average Co-Inventor Count = 1.94
ph-index = 4
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. (7 from 71 patents)
7 patents:
1. 7608769 - Packaged drum set
2. 7244883 - Drum container
3. D541841 - Castanet
4. 7087825 - Musical instrument system
5. D514927 - Drumstick hanger package
6. D506131 - Drum box
7. D499020 - Drum box