Average Co-Inventor Count = 4.00
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. Other (1 from 832,812 patents)
2. Sony Corporation (1 from 58,130 patents)
2 patents:
1. 6849201 - Waste water treatment material, waste water treatment method, sludge dehydrating agent and sludge treatment method
2. 6573336 - Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment