Average Co-Inventor Count = 2.25
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. Mitsubishi Electric Corporation (6 from 15,844 patents)
6 patents:
1. 11518647 - Elevator and elevator landing guidance device
2. D890010 - Elevator indicator
3. D871948 - Control panel for elevator
4. D870583 - Control panel for elevator
5. D869974 - Control panel for elevator
6. D869975 - Control panel for elevator