Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7614198 | Method for providing existing building flat roof with drain restrictors | James F. Mickowski | 2009-11-10 |
| 5377361 | Toilet flange | — | 1995-01-03 |
| 5251339 | Retrieving device | — | 1993-10-12 |
| D318243 | Leveling instrument | — | 1991-07-16 |
| 4879771 | Floor clean-out assembly | — | 1989-11-14 |
| 4871451 | Floor drain plate assembly | — | 1989-10-03 |