Average Co-Inventor Count = 3.00
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. Kone Oy (2 from 131 patents)
2 patents:
1. 5896948 - Reserve power system
2. 5894910 - Procedure for controlling an elevator