Average Co-Inventor Count = 2.67
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 (4 from 2,623 patents)
4 patents:
1. 11780704 - Measurement and diagnostic of elevator door performance using sound and video
2. 10981750 - Prognostic analysis of elevator performance using sensors and internet of things
3. 10723588 - System and method of measuring and diagnosing ride quality of an elevator system
4. 10547917 - Ride quality mobile terminal device application