Average Co-Inventor Count = 13.00
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. Shimizu Construction Co., Ltd. (1 from 116 patents)
2. Mitsubishi Heavy Industries Limited (4,618 patents)
3. Mitsubishi Shipbuilding Co., Ltd. (12 patents)
4. Wartsila Japan Ltd. (5 patents)
1 patent:
1. 5012622 - Structural filler filled steel tube column