Average Co-Inventor Count = 4.29
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 (3 from 2,625 patents)
3 patents:
1. 9915307 - Brake
2. 9688512 - Elevator brake
3. 9630805 - Non-linear stiffness roller assembly