Average Co-Inventor Count = 2.00
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. Nishiyama Corporation (1 from 5 patents)
2. Nishiyama Corporation of America (1 from 1 patent)
2 patents:
1. D288121 - Ventilator for container
2. D286908 - Ventilator for containers