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. Vtech Electronics Limited (2 from 54 patents)
2 patents:
1. D508052 - Joy stick with rotational element
2. D503750 - Video game console