Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D537216 | Surface cleaner | Chad Davis, Douglas J. Medema | 2007-02-20 |
| D536147 | Portable extractor | Douglas J. Medema, Chad Davis | 2007-01-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D537216 | Surface cleaner | Chad Davis, Douglas J. Medema | 2007-02-20 |
| D536147 | Portable extractor | Douglas J. Medema, Chad Davis | 2007-01-30 |