Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775857 | Drain fitting device for sealing and facilitating introduction of fluid or gas to pressurize clogged drain | John M. Hughes | 2004-08-17 |
| 6419201 | Self-supporting post leveling device | John M. Hughes | 2002-07-16 |