Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6367776 | Flow control device and apparatus for mounting same | Harry G. Lippert, John A. Ulcej | 2002-04-09 |
| 6109592 | Flow control device and apparatus for mounting same | Harry G. Lippert, John A. Ulcej | 2000-08-29 |
| 5962041 | Dual flexible lip extrusion apparatus | John W. Ryan, Gregory M. Wilson, Donald R. Garton, Harry G. Lippert | 1999-10-05 |
| 5770240 | Extrusion die for rigid foam sheet | — | 1998-06-23 |
| 5679383 | Dual flexible lip extrusion apparatus | John W. Ryan, Gregory M. Wilson, Donald R. Garton, Harry G. Lippert | 1997-10-21 |
| 5618568 | Dual-chamber vacuum box | Jeffrey M. Seckora, Brian M. Pitsch | 1997-04-08 |
| 5375990 | Feed block for coextrusion apparatus | Harry G. Lippert, Donald R. Garton | 1994-12-27 |