Average Co-Inventor Count = 3.26
ph-index = 3
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 (5 from 2,614 patents)
5 patents:
1. 11952241 - Elevator counterweight
2. 9434578 - Sheave assembly and suspension system for an MRL elevator
3. 7377366 - Sheave assembly for an elevator system
4. 7140473 - Safety top balustrade for a car of a machine room-less elevator
5. 5862889 - Elevator cabs