Average Co-Inventor Count = 3.33
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. Ihi Marine United Inc. (2 from 4 patents)
2. Ishikawajima-Harima Heavy Industries Co., Ltd. (1 from 341 patents)
3. Ishikawajima-Harima Jukogyo Kabushiki Kaisha (1 from 306 patents)
4 patents:
1. D536297 - Pontoon
2. D535607 - Pontoon
3. 6644234 - Holding apparatus for a floating hose
4. 6487982 - Anti-rolling structure for box-type floating body