Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11272819 | Hose valve sub-assembly apparatus and method for retractable hose vacuum systems | Robert Lee Rawls | 2022-03-15 |
| 10010229 | Hose valve apparatus and method for retractable hose vacuum systems | Robert Lee Rawls | 2018-07-03 |
| 8479353 | Hose valve apparatus and method for retractable hose vaccum systems | Robert Lee Rawls | 2013-07-09 |
| 7010829 | Retractable hose central vacuum cleaning system apparatus and method | James Roger Harman, Gary Drivstuen | 2006-03-14 |