Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432249 | Extrusion die and method | Lawrence S. Rajnik | 2002-08-13 |
| 6343923 | Cellular extrusion die | Lawrence S. Rajnik | 2002-02-05 |
| 5487863 | Extrusion die for protrusion and/or high cell density ceramic honeycomb structures | Rodney I. Frost, Irwin M. Lachman | 1996-01-30 |
| RE34624 | Extrusion die for forming thin walled honeycomb structures | — | 1994-05-31 |
| 5238386 | Multi-part extrusion die | G. Daniel Lipp, Lawrence S. Rajnik | 1993-08-24 |
| 4902216 | Extrusion die for protrusion and/or high cell density ceramic honeycomb structures | Rodney I. Frost, Irwin M. Lachman | 1990-02-20 |
| 4731010 | Extrusion die for forming thin-walled honeycomb structures | — | 1988-03-15 |
| 4468365 | Extrusion dies for thin wall substrates | Daniel Wayne Corbett, Louis S. Socha, Jr. | 1984-08-28 |
| 4403131 | Electrical discharge machining utilizing a counter slot | Peter J. Majestic | 1983-09-06 |
| 4333896 | Method and apparatus for extruding honeycomb structures with skins thereon involving the use of an adjustable extension die mask | — | 1982-06-08 |
| 4330254 | Extrusion die conversion | — | 1982-05-18 |
| 4328856 | Heat recovery wheel | — | 1982-05-11 |
| 4321025 | Extrusion die | — | 1982-03-23 |