Average Co-Inventor Count = 2.29
ph-index = 3
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 (4 from 1,357 patents)
4 patents:
1. D504935 - Water purifier
2. D500836 - Cartridge for water purifier
3. D497412 - Switch valve for a water purifier
4. D497195 - Water purifier