Average Co-Inventor Count = 1.25
ph-index = 4
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. Nec Corporation (5 from 35,734 patents)
5 patents:
1. 5483591 - Apparatus for referring to a content of a dial memory in a telphone set
2. 5309500 - Apparatus for displaying time-of-day data adaptively to different time
3. 5258964 - Apparatus for displaying time-of-day data adaptively to different time
4. 5247572 - Apparatus for control of storing information into dial memories in a
5. 5206904 - Apparatus for driving a service function unit of a multi-function