Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9993126 | Dual port valve assembly and retractable hose central vacuum cleaning system | — | 2018-06-12 |
| 9717381 | Central vacuum system hose retractor valve with vacuum assisted hose lock and seal | — | 2017-08-01 |
| 7010829 | Retractable hose central vacuum cleaning system apparatus and method | Rod Drivstuen, Gary Drivstuen | 2006-03-14 |
| 4260136 | Suspension hook assembly | William M. Larson, J. B. Threat | 1981-04-07 |