Average Co-Inventor Count = 5.06
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 2,619 patents)
3 patents:
1. 11492232 - Elevator balance weight rescue device, an elevator and an elevator balance weight rescue method
2. 11358833 - Guide device and elevator system
3. 11142431 - Stabilizing device of elevator car and a control method thereof, an elevator system