Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5866669 | Sulfonated phenol-formaldehyde resin for paper-making | Seika Tay, Mitsuyoshi Kato, Masafumi Yoshikawa | 1999-02-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5866669 | Sulfonated phenol-formaldehyde resin for paper-making | Seika Tay, Mitsuyoshi Kato, Masafumi Yoshikawa | 1999-02-02 |