Average Co-Inventor Count = 2.67
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 2,614 patents)
2 patents:
1. 9302886 - Elevator door coupler assembly
2. 7721851 - Bottom guiding device for elevator car and landing doors