Average Co-Inventor Count = 4.50
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 2,614 patents)
2 patents:
1. 9663327 - Elevator braking system
2. 9469505 - Sheet metal guide rail for an elevator system