Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921960 | Acoustic cabinet | Kenneth E. Jacobson, Peter F. Menzel, Mark R. Friedrichs, Ronald Freiheit | 2011-04-12 |
| D606339 | Cabinet grille | Kenneth E. Jacobson, Peter F. Menzel, Mark R. Friedrichs, Ronald Freiheit | 2009-12-22 |