Average Co-Inventor Count = 8.00
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. Otis Elevator Company (2 from 2,623 patents)
2 patents:
1. 11577930 - Automatic elevator calling system and a method for controlling automatic calling elevator
2. 11524867 - Determination of non-normal elevator calling request in an automatic elevator calling request system