Average Co-Inventor Count = 3.75
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. Ntn Toyo Bearing Co., Ltd. (2 from 65 patents)
2 patents:
1. 4504099 - Drive-axle bearing device for automobiles
2. 4454640 - Method of producing bearing devices for driving wheels of automobiles