Nishihara Environmental Sanitation Research Corporation Limited
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nishihara Environmental Sanitation Research Corporation Limited.The latest application filed is for "waste water treating process".
- Nishihara Environmental Sanitation Research Corporation Limited - Tokyo JP
- Nishihara Environmental Sanitation Research Corp. Ltd. - Tokyo JP
| Patent | Date |
|---|---|
| Waste water treating process Grant 5,098,567 - Nishiguchi March 24, 1 | 1992-03-24 |
| Intermittent aeration type biological treatment process and system therefor Grant 4,818,408 - Hamamoto April 4, 1 | 1989-04-04 |
| Microorganism monitoring apparatus Grant 4,661,845 - Saito , et al. April 28, 1 | 1987-04-28 |
| Activated sludge method Grant 4,655,925 - Tabata , et al. April 7, 1 | 1987-04-07 |
| Filtering apparatus for sludgy liquids Grant 4,137,177 - Shoda January 30, 1 | 1979-01-30 |
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