Average Co-Inventor Count = 2.67
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 2,614 patents)
2 patents:
1. 5628391 - Floorplate frame for a people moving device
2. 5372231 - Combplate for a people moving device