Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6353086 | Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof | Jeffrey John Kolstad, David R. Witzke, Mark Hartmann, Eric Stanley Hall | 2002-03-05 |
| 6312823 | Compostable multilayer structures, methods for manufacture and articles prepared therefrom | Ali El-Afandi, Patrick R. Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan +4 more | 2001-11-06 |
| 6183814 | Coating grade polylactide and coated paper, preparation and uses thereof, and articles prepared therefrom | Mark Hartmann, Matthew L. Iwen, Christopher M. Ryan, Jeffrey John Kolstad, Kevin T. McCarthy | 2001-02-06 |
| 6114495 | Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof | Jeffrey John Kolstad, David R. Witzke, Mark Hartmann, Eric Stanley Hall | 2000-09-05 |
| 5849374 | Compostable multilayer structures, methods for manufacture, and articles prepared therefrom | Patrick R. Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan, Ali El-Afandi +4 more | 1998-12-15 |
| 5849401 | Compostable multilayer structures, methods for manufacture, and articles prepared therefrom | Ali El-Afandi, Patrick R. Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan +4 more | 1998-12-15 |