Average Co-Inventor Count = 4.44
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. Hitachi, Ltd. (5 from 42,517 patents)
5 patents:
1. 8197752 - Managing system and method for emissions of environmental pollutants
2. 8142626 - Electrolyzer and electrodes
3. 8109286 - Fuel tank including movable or deformable fuel chamber and waste chamber
4. 7824625 - Dehydrogenation fuel theft prevention system
5. 7805271 - Evaluation system for amount of emission gases through fuel supply chain