Average Co-Inventor Count = 5.87
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. Otis Elevator Company (2 from 2,619 patents)
2 patents:
1. 7568570 - Safety monitoring system for a people conveyor
2. 5372231 - Combplate for a people moving device