Average Co-Inventor Count = 3.43
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. Toyo Seikan Kaisha, Ltd. (2 from 586 patents)
2 patents:
1. 5786050 - Easy opening pouch
2. 5312659 - Laminated film bag for packaging food