Average Co-Inventor Count = 4.00
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 (2 from 2,619 patents)
2 patents:
1. 10618778 - Openable extensible panel and elevator ceiling, car and system with the same
2. 10246297 - Rust removing device for elevator guide rail