Average Co-Inventor Count = 2.00
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. Norlin Music, Inc. (2 from 29 patents)
2 patents:
1. 4046049 - Foot control apparatus for electronic musical instrument
2. 4027569 - Keyboard for an electronic musical instrument employing variable