Average Co-Inventor Count = 4.61
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 (3 from 2,614 patents)
3 patents:
1. 9457994 - Method of assembling an elevator machine frame
2. 8776953 - Magnetic elevator door coupler
3. 8631907 - Elevator machine frame