Average Co-Inventor Count = 1.09
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. Sankyo Kogyo Co., Ltd. (3 from 5 patents)
2. Hongo Company Ltd. (3 from 3 patents)
6 patents:
1. 6555364 - Biological deodorizing apparatus assembled with box-like frame units
2. 6224756 - Apparatus for treating organic raw water utilizing anaerobic microorganisms
3. 5972212 - Apparatus for treating organic waste water utilizing microorganisms
4. 5766938 - Biological deodorizing apparatus with rotary carriers
5. 5695010 - Method of drilling around an existing casing pipe to regenerate an old
6. 4775499 - Gas-liquid contacting apparatus