Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9022078 | Flexible duct and means of production | — | 2015-05-05 |
| 7918955 | Manufacture of flexible tubular duct with improved core delivery | — | 2011-04-05 |
| 7549310 | Mandrel assembly for manufacturing tubular products | — | 2009-06-23 |
| 6676173 | Duct joiner and method of manufacture | — | 2004-01-13 |
| 6652375 | Air-conditioning register and boot assembly | — | 2003-11-25 |
| 5921592 | Duct joiner and retaining clip therefor | — | 1999-07-13 |
| 5667437 | Air diffuser | — | 1997-09-16 |
| D345514 | Cutting guide and square | — | 1994-03-29 |
| 5210947 | Method of manufacturing an improved duct | — | 1993-05-18 |