Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619487 | Knife holder | — | 2003-09-16 |
| 6375016 | Knife holder with safety lock | — | 2002-04-23 |
| D443799 | Knife holder | — | 2001-06-19 |
| 5655672 | Slidable knife holder | — | 1997-08-12 |
| 5522229 | Blockage detector | Gerald S. Spanger | 1996-06-04 |
| 5069042 | Cleanable condensate trap | — | 1991-12-03 |
| 4907711 | Outlet box covers with location indicators for wall covering | — | 1990-03-13 |
| 4747506 | Adjustable outlet box mounting assembly | — | 1988-05-31 |