Average Co-Inventor Count = 2.40
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. Nihon Radiator Co., Ltd. (2 from 49 patents)
2 patents:
1. 4579247 - Cap for fuel tank
2. 4304339 - Fuel tank cap