Average Co-Inventor Count = 3.43
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. Daicel Chemical Industries, Ltd. (2 from 1,165 patents)
2 patents:
1. 4724849 - Narrow-cross sectioned fibers for use in tobacco smoker filters
2. 4619279 - Tobacco smoke filter