Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921960 | Acoustic cabinet | Kenneth E. Jacobson, Rebecca S. Broton, Mark R. Friedrichs, Ronald Freiheit | 2011-04-12 |
| D606339 | Cabinet grille | Kenneth E. Jacobson, Rebecca S. Broton, Mark R. Friedrichs, Ronald Freiheit | 2009-12-22 |
| D330981 | Musical instrument digital interface desk | Leslie R. Abraham, Dennis R. Meyer, Glenn G. Kanengieter, Craig J. Ulrich, Dorette E. Kanengieter | 1992-11-17 |
| 4543816 | Method and apparatus for monitoring the diameters of rod-shaped products of the tobacco processing industry | Peter Brand, Heinz-Christen Lorenzen, Uwe Heitmann | 1985-10-01 |