Average Co-Inventor Count = 2.86
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. Katayama Chemical, Inc. (2 from 20 patents)
2. Mitsui Engineering and Shipbuilding Company Limited (1 from 244 patents)
3. The Japan Association of Marine Safety (1 from 2 patents)
4. M.o. Marine Consulting, Ltd. (1 from 2 patents)
5. Shinko Ind. Ltd. (1 from 2 patents)
6. Marine Technology Institute Co., Ltd. (1 from 1 patent)
7. Laboratory of Aquatic Science Consultant Corporation (1 from 1 patent)
2 patents:
1. 8123958 - Method for treating ship ballast water
2. 5256423 - Method for destroying cyst of noxious plankton