Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5635575 | Agent for water treatment containing a polymer for water treatment and a process for producing said polymer | Norimasa Kobayashi | 1997-06-03 |
| 5624995 | Agent for water treatment containing a polymer for water treatment and a process for producing said polymer | Norimasa Kobayashi | 1997-04-29 |