Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10626587 | Overflow | James Edward McAlpine, Robert Gemmell McAlpine | 2020-04-21 |
| 10458104 | High flow drain control | James Edward McAlpine, Robert Gemmell McAlpine | 2019-10-29 |
| 9790672 | Plumbing overflow | James Edward McAlpine | 2017-10-17 |