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. Nsk Corporation (3 from 2,433 patents)
3 patents:
1. 7500414 - Steering column device for vehicle
2. 7350816 - Impact absorbing steering column device
3. 7322610 - Steering column device for vehicle and method of manufacturing the device