Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10301109 | Receptacle filling ramp | Andrew Dervin, Kenrick J. DuRapau | 2019-05-28 |
| D802865 | Trash receptacle loading ramp | Andrew Dervin, Kenrick J. DuRapau | 2017-11-14 |
| 9512578 | Traffic cone | Rick DuRapau | 2016-12-06 |
| 8439596 | Textured tile system and installation method | — | 2013-05-14 |
| 7520694 | Flexible traffic reflector | — | 2009-04-21 |
| 7513212 | Traffic cone apparatus and method of production | — | 2009-04-07 |
| D490334 | Vertical indicator panel | — | 2004-05-25 |
| D475315 | Conical traffic delineator | — | 2003-06-03 |
| D474987 | Tubular traffic delineator | — | 2003-05-27 |
| 6488119 | Folding sawhorse with locking shelf | Rick DuRapau | 2002-12-03 |