Average Co-Inventor Count = 4.44
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 (1 from 2,616 patents)
2. Nippon Otis Elevator Company (1 from 5 patents)
2 patents:
1. 9434579 - Elevator device and roller guide assembly
2. 9382098 - Elevator device and roller guide assembly