Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732256 | Pipe joining material for connecting pipes | Wayne Ernest Conrad, Nina Conrad, Brian Burke, Don Vivian | 2017-08-15 |
| 9475965 | Pipe joining material for connecting pipes | Wayne Ernest Conrad, Nina Conrad, Brian Burke, Don Vivian | 2016-10-25 |
| 5558697 | Dual cyclonic vacuum cleaner | James Dyson, Tat-Chi A. Tsui | 1996-09-24 |
| 4798613 | Surface cleaning apparatus | Michael W. Hetherington, David P. Garner | 1989-01-17 |
| 4776058 | Surface cleaning apparatus | David P. Garner, Michael N. Hetherington | 1988-10-11 |
| D295566 | Combined vacuum cleaner and scrubbing brush | Michael W. Hetherington, David P. Garner | 1988-05-03 |