Average Co-Inventor Count = 4.00
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. Ube Industries, Inc. (1 from 1,432 patents)
2. Iwatani & Co., Ltd. (1 from 6 patents)
3. Lec, Inc. (1 from 5 patents)
4. Sony Corporation (58,132 patents)
1 patent:
1. 5019252 - Portable water purifier