Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10458175 | Device for closing an opening in a building | — | 2019-10-29 |
| 9109737 | Device for sealing the end face of a tube from which fluid flows | — | 2015-08-18 |
| 6981351 | Fire rated door with a surrounding door frame | — | 2006-01-03 |
| 6668499 | Fire door or window | — | 2003-12-30 |
| 6606831 | Fire rated door and fire rated window | — | 2003-08-19 |
| 6421968 | Fire wall | — | 2002-07-23 |