Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12196020 | Restroom door assembly | Gerard Mayer, III, Clifford Krapfl, John Beckman, Jason Bosnak, Aaron Siewert +2 more | 2025-01-14 |
| 7987692 | Door leveler | John D. Kiefer, Jr., Patrick McKinney | 2011-08-02 |
| 7493671 | Adjustable trowel assembly | Donald Hurley | 2009-02-24 |