Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7237792 | Protective cushion for a trailer hitch or the like | Robert J. Mrofka | 2007-07-03 |
| 6913277 | Towing hitch extension | Robert J. Mrofka | 2005-07-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7237792 | Protective cushion for a trailer hitch or the like | Robert J. Mrofka | 2007-07-03 |
| 6913277 | Towing hitch extension | Robert J. Mrofka | 2005-07-05 |