Average Co-Inventor Count = 3.11
ph-index = 3
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. Nihon Matai Co., Ltd. (3 from 6 patents)
2. Nippon Yusen Kaisha (2 from 6 patents)
3. Nippon Yusen Kabushiki Kaisha (1 from 15 patents)
4. Nippon Yusen Kabushiki Kaisha and Nihon Matai Co., Ltd. (1 from 1 patent)
4 patents:
1. 5887979 - Liner bag used for a container
2. 5639164 - Liner bag used for a container
3. 4784287 - Bulkhead device for use in container liner bags
4. 4674127 - Liner bag for use in containers