Average Co-Inventor Count = 4.00
ph-index = 1
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. Toyota Jidosha Kogyo Kabushiki Kaisha (1 from 1,838 patents)
2. Teikoku Piston Ring Co., Ltd. (1 from 67 patents)
1 patent:
1. 4420543 - Bearing member of an internal combustion engine, having a flame sprayed