Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D587346 | Drain cover | Mark ARMSTRONG | 2009-02-24 |
| D575881 | Grate | — | 2008-08-26 |
| D563528 | Locust drain cover | Mark ARMSTRONG | 2008-03-04 |
| D562995 | Sun face drain cover | Mark ARMSTRONG | 2008-02-26 |