Average Co-Inventor Count = 2.67
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. Mitsubishi Rayon Company, Limited (2 from 1,357 patents)
2 patents:
1. D504935 - Water purifier
2. D497412 - Switch valve for a water purifier