Average Co-Inventor Count = 3.00
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. Nsk Corporation (4 from 2,430 patents)
4 patents:
1. 7500414 - Steering column device for vehicle
2. 7354068 - Tilt steering column device for vehicle
3. 7350816 - Impact absorbing steering column device
4. 7322610 - Steering column device for vehicle and method of manufacturing the device