Average Co-Inventor Count = 1.50
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 2,623 patents)
2 patents:
1. 11791680 - Magnet spacer and motor
2. 10288135 - Brake for elevator and a replacement method of damper of the brake for elevator