Average Co-Inventor Count = 3.43
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. Nof Corporation (2 from 326 patents)
2 patents:
1. 11739283 - Lubricant additive, lubricant additive composition, and lubricating oil composition containing the same
2. 11225623 - Ester for refrigerator oils