Average Co-Inventor Count = 2.25
ph-index = 4
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 (12 from 2,614 patents)
12 patents:
1. D1103129 - Elevator button
2. D1071767 - Operation panel for the disabled
3. D1069626 - Fire alarm device
4. D1066092 - Display
5. D1060095 - Operation panel for the disabled
6. D1052109 - Elevator hall call board
7. D1047254 - Elevator hall lantern
8. D846148 - Elevator car
9. D846149 - Elevator car
10. D846150 - Elevator car
11. D844839 - Elevator car
12. D843633 - Lighting fixture