Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7965930 | Flexible tubing with imbedded helical conductors and method of making | Eric Carlson | 2011-06-21 |
| 6190480 | Method of making a double-walled flexible tubing product with helical support bead and heating conductor | — | 2001-02-20 |
| 5848223 | Double-walled flexible tubing product with helical support bead and heating conductor and apparatus and method for making | — | 1998-12-08 |
| 5637168 | Apparatus and method for making flexible tubing with helically wound heating conductor | — | 1997-06-10 |
| 5454061 | Apparatus and method for making flexible tubing with helically wound heating conductor | — | 1995-09-26 |
| 4375381 | Two piece extruded hose | Douglas I. Hoiberg | 1983-03-01 |
| 4337800 | Two piece extruded hose | Douglas I. Hoiberg | 1982-07-06 |