Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833085 | Agent for restricting elution of phosphorus, method for producing the same, and method of restricting elution of phosphorus in sludge | Hironobu Hirasawa, Noboru Yamada | 2004-12-21 |