Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8636026 | Backflow preventing apparatus for water closets | Thomas Earl Kelly, Stephanie C. Kelly | 2014-01-28 |
| 7789104 | Backflow preventing apparatus for water closets | Thomas Earl Kelly, Stephanie C. Kelly | 2010-09-07 |