Average Co-Inventor Count = 2.40
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. Clarion Co (2 from 1,057 patents)
2 patents:
1. 4881274 - FM multipath noise reduction circuit
2. 4694500 - Control voltage generating circuit for activating a noise reduction