Average Co-Inventor Count = 2.40
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. 6161655 - Non-contact elevator call button
2. 6161654 - Virtual car operating panel projection