Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11180908 | Device for providing improved drainage | William T. Ball | 2021-11-23 |
| 11149423 | Overflow cover interconnection system | William T. Ball | 2021-10-19 |
| 11072915 | Automatic draining back flow prevention device | William T. Ball | 2021-07-27 |
| D921852 | Strainer | William T. Ball | 2021-06-08 |