Average Co-Inventor Count = 4.80
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. Hitachi, Ltd. (4 from 42,535 patents)
4 patents:
1. D1011364 - Display screen with graphical user interface
2. D1011375 - Display screen with graphical user interface
3. D817978 - Display screen with graphical user interface
4. 6807544 - Method and system for information retrieval based on parts of speech conditions