Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10934725 | Angle tapping block | Donald W. Suwyn, Darwin D. Spencer, Jr. | 2021-03-02 |
| 10856685 | Automatic adjustment tube for carpet stretcher tool | Barton Steven Wolf | 2020-12-08 |
| 10710255 | Cushion back cutter with internal blade holder | Tan D. Nguyen | 2020-07-14 |
| 10640997 | Motorized floor stripper machine | Gregory Joseph Chambers, Tan D. Nguyen | 2020-05-05 |
| 10316529 | Motorized floor stripper machine | Gregory Joseph Chambers, Tan D. Nguyen | 2019-06-11 |
| 9085848 | Carpet seaming iron | Gregory Joseph Chambers, Tan D. Nguyen | 2015-07-21 |
| 8671581 | Undercut saw height adjustment, handle, blade guard improvements | Tan D. Nguyen | 2014-03-18 |
| 7966734 | Tack strip cutter | Michael Patrick Murphy | 2011-06-28 |
| 7788812 | Carpet trimmer | Tan D. Nguyen | 2010-09-07 |
| 7739801 | Undercut saw | Tan D. Nguyen | 2010-06-22 |
| 7739802 | Undercut saw | Tan D. Nguyen | 2010-06-22 |
| 7571806 | Case for vinyl roller tool | Tan D. Nguyen | 2009-08-11 |
| 7356932 | Carpet trimmer | Tan D. Nguyen | 2008-04-15 |
| 7188724 | Case for vinyl roller tool | Tan D. Nguyen | 2007-03-13 |