Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656700 | Process for preparing linear copolyesters containing omega-hydroxycarboxylic acid units | Werner Kagi, Werner Stibal | 1997-08-12 |
| 5656719 | Condensation injection molding process for producing bottle preforms of polyethylene terephthalate and/or its copolyesters and resultant preforms | Werner Stibal, Werner Kaegi, Joachim Ensinger | 1997-08-12 |