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. Kone Oy (2 from 131 patents)
2 patents:
1. 6050368 - Procedure and apparatus for controlling the hoisting motor of an elevator
2. 5798490 - Procedure and apparatus for determining the position of an elevator car