Average Co-Inventor Count = 3.33
ph-index = 1
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. Kmc Music, Inc. (2 from 10 patents)
2. Drum Workshop, Inc. (1 from 98 patents)
3 patents:
1. 9343050 - Channeled shaker
2. 8779263 - Channeled shaker
3. 8716582 - Jingle shaker