Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7516576 | Snow stop | — | 2009-04-14 |
| 6996938 | Snow stop | — | 2006-02-14 |
| D511451 | Snow stop | — | 2005-11-15 |
| D475613 | Snow stop | — | 2003-06-10 |
| D457423 | Snow stop | — | 2002-05-21 |
| D455068 | Snow stop | — | 2002-04-02 |
| D419863 | Snow guard system member | — | 2000-02-01 |
| 5570557 | Snow stop roofing with protrusion and/or wedge snow stop | Janusz Kwiatkowski | 1996-11-05 |
| 5371979 | Snow stop | Janusz Kwiatkowski | 1994-12-13 |