Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5900457 | Aqueous polyurethane dispersions formed from polyisocyanates having a methylene bridge | Youlu Duan, Yi Wei, Yuduo Zhu, Sonja Stammler, Michael J. Maksymkiw | 1999-05-04 |
| 5834554 | Laminating adhesives for flexible packaging | Youlu Duan, Lowell Lindquist, Scott Rhein, Thomas E. Rolando, Sonja Stammler +2 more | 1998-11-10 |