Average Co-Inventor Count = 6.00
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. Kato Manufacturing Corporation Limited (2 from 3 patents)
2. Aiwa Corporation (2 from 3 patents)
3. Agency of Industrial Science and Technology (1 from 1,037 patents)
4. Director-general of Agency of Industrial Science and Technology (1 from 232 patents)
2 patents:
1. 5562820 - Process for purifying water
2. 5449467 - Process for purifying water