Average Co-Inventor Count = 3.00
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. Idemitsu Petrochemical Co., Ltd. (2 from 555 patents)
2 patents:
1. 5947884 - Method of producing a bag for carry out food or other articles
2. 5741077 - Carry out bag, method of producing the same and method of using the same