Average Co-Inventor Count = 4.80
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. Nof Corporation (2 from 326 patents)
2. Chuo Yuka Co., Ltd. (1 from 2 patents)
2 patents:
1. 7744686 - Frost-preventive composition
2. 6127325 - Viscosity index improver, process for preparing the same and lubricating