Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D837966 | Grille | Brent Elliott Coffey, Jesse Allen Hollingsworth, Kenneth J. Jonas, David L. Pringle | 2019-01-08 |
| 9945580 | Ventilation system | Robert G. Penlesky, Daniel L. Karst, Mirko Zakula | 2018-04-17 |
| D759800 | Grille | Brent Elliott Coffey, Jesse Allen Hollingsworth, Kenneth J. Jonas, David L. Pringle | 2016-06-21 |
| 9303888 | Ventilation system and method | Daniel L. Karst, Mirko Zakula, Robert G. Penlesky | 2016-04-05 |
| 7654495 | Hanger assembly | Richard G. McDonald, Robert G. Penlesky, Kenneth J. Jonas, Daniel L. Karst | 2010-02-02 |
| D577805 | Grille | Brent Elliott Coffey, Jesse Allen Hollingsworth, Kenneth J. Jonas, David L. Pringle | 2008-09-30 |
| D568460 | Ventilation grille | Corey Scott Jacak, Brent Elliott Coffey | 2008-05-06 |