Average Co-Inventor Count = 1.00
ph-index = 3
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 Osakeyhtio (3 from 4 patents)
3 patents:
1. D255667 - Push button for an elevator
2. D255105 - Up and down directional signal for an elevator
3. D254484 - Up and down directional signal for an elevator