Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039787 | Method for production of cationic water-soluble resin and water-treating agent containing said resin based on imine modified polyethylene glycol halohydrin ethers | Yasumasa Tanaka, Shigehiro Nishimura, Yugi Sugiura, Yoshinori Sano | 1991-08-13 |