Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7381787 | Polytrimethylene terephthalate having a low level of acrolein and a process for producing the same | Donald R. Kelsey, Robert Lawrence Blackbourn, Holger Bachmann, Eckhard Seidel | 2008-06-03 |
| 7196159 | Process for producing polytrimethylene terephthalate | Donald R. Kelsey, Emery Johnson | 2007-03-27 |
| 6610819 | Reduction of friability of poly(trimethylene terephthalate) | Ben Duh, Robert Lawrence Blackbourn, Kathleen Suzanne Kiibler | 2003-08-26 |
| 6528579 | Zero-heel polyester process | Kevin Allen, Emery Johnson, Samuel Martin Moats | 2003-03-04 |