Average Co-Inventor Count = 4.24
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 2,614 patents)
3 patents:
1. 10071880 - Low profile drive unit for elevator system
2. 9914617 - Elevator power management to augment maximum power line power
3. 7523809 - Elevator top of car safety