Issued Patents All Time
Showing 25 most recent of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9884838 | Stabilized levulinic ester ketals | Brian D. Mullen, Vivek Badarinarayana, Matthew J. Tjosaas, Cora M. Leibig | 2018-02-06 |
| 6495631 | Impact modified melt-stable lactide polymer compositions and processes for manufacture thereof | Jed Richard Randall, Christopher M. Ryan, James Lunt, Mark Henry Hartman, Jeffrey John Kolstad +1 more | 2002-12-17 |
| 6355772 | Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 2002-03-12 |
| 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, James Nangeroni | 2002-03-05 |
| 6326458 | Continuous process for the manufacture of lactide and lactide polymers | Patrick R. Gruber, Jeffrey John Kolstad, Matthew L. Iwen, Richard Douglas Benson, Ronald L. Borchardt | 2001-12-04 |
| 6277951 | Continuous process for manufacture of lactide polymers with controlled optical purity | Patrick R. Gruber, Jeffrey John Kolstad, Matthew L. Iwen, Richard Douglas Benson, Ronald L. Borchardt | 2001-08-21 |
| 6207792 | Melt-stable amorphous lactide polymer film and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 2001-03-27 |
| 6197380 | Paper having a melt-stable lactide polymer coating and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 2001-03-06 |
| 6143863 | Melt-stable lactide polymer composition and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Robin Sue Eichen Conn, Christopher M. Ryan | 2000-11-07 |
| 6121410 | Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 2000-09-19 |
| 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, James Nangeroni | 2000-09-05 |
| 6111060 | Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 2000-08-29 |
| 6093791 | Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 2000-07-25 |
| 6005067 | Continuous process for manufacture of lactide polymers with controlled optical purity | Patrick R. Gruber, Jeffrey John Kolstad, Matthew L. Iwen, Richard Douglas Benson, Ronald L. Borchardt | 1999-12-21 |
| 6005068 | Melt-stable amorphous lactide polymer film and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 1999-12-21 |
| 5981694 | Melt-stable lactide polymer composition and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Robin Sue Eichen Conn, Christopher M. Ryan | 1999-11-09 |
| 5922832 | Impact modified melt-stable lactide polymer compositions and processes for manufacture thereof | Jed Richard Randall, Christopher M. Ryan, James Lunt, Mark Henry Hartman, Jeffrey John Kolstad +1 more | 1999-07-13 |
| 5852166 | Paper having a melt-stable lactide polymer coating and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 1998-12-22 |
| 5807973 | Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 1998-09-15 |
| 5798436 | Melt-stable amorphous lactide polymer film and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 1998-08-25 |
| 5773562 | Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 1998-06-30 |
| 5763564 | Melt-stable lactide polymer composition and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Robin Sue Eichen Conn, Christopher M. Ryan | 1998-06-09 |
| 5665474 | Paper having a melt-stable lactide polymer coating and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 1997-09-09 |
| 5585191 | Melt-stable amorphous lactide polymer film and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Robin Sue Eichen Conn | 1996-12-17 |
| 5539081 | Melt-stable lactide polymer composition and process for manufacture thereof | Patrick R. Gruber, Jeffrey John Kolstad, Robin Sue Eichen Conn, Christopher M. Ryan | 1996-07-23 |