Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6512080 | Process of producing polytrimethylene terephthalate (PTT) | Donald R. Kelsey, Robert Lawrence Blackbourn, Robert Stephen Tomaskovic, Eckhard Seidel, Fritz Wilhelm | 2003-01-28 |
| 6509438 | Optimum dipropylene glycol content polytrimethylene terephthalate compositions | Donald R. Kelsey, Betty Marrou Scardino, Kailash Dangayach, Houston Brown, Eckhard Seidel +1 more | 2003-01-21 |