Average Co-Inventor Count = 6.00
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 (1 from 2,624 patents)
2. Zhejiang Dahua Technology Co., Ltd. (1 from 224 patents)
2 patents:
1. 12511885 - Systems and methods for object recognition
2. 10189680 - Landing-door door lock device