Average Co-Inventor Count = 1.00
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. Oyo Corporation (2 from 7 patents)
2 patents:
1. 5534668 - Deadweight dropping type wave source
2. 5416281 - Deadweight dropping type wave source