Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10470913 | Ankle brace for ankle-foot orthotic | — | 2019-11-12 |
| 9149384 | Ankle-foot orthotic for treatment of foot drop | — | 2015-10-06 |
| 8382694 | Ankle-foot orthotic for treatment of foot drop | — | 2013-02-26 |
| RE34468 | Portable performance platform | Douglas Rau, Harland Blume, Arie Boers | 1993-12-07 |
| 5078442 | Portable performance platform | Douglas Rau, Harland Blume, Arie Boers | 1992-01-07 |
| 4650145 | Slider mechanism | Jerome W. Natzel, Harvey M. Urch | 1987-03-17 |
| D264779 | Chair | Darrel E. Newell, Harvey M. Urch, Logan Johnson | 1982-06-08 |
| D263361 | Music stand top or similar article | Logan Johnson, Wayne V. Tenner | 1982-03-16 |
| 4306750 | Musician's chair | Darrel E. Newell | 1981-12-22 |
| RE30830 | Portable riser | Harvey M. Urch, David R. Boeddeker | 1981-12-22 |
| 4241777 | Portable shell | Herman A. Clausen, David R. Boeddeker, Harvey M. Urch | 1980-12-30 |
| 4238097 | Conductor's chair | Herman A. Clausen, David R. Boeddeker, Logan Johnson | 1980-12-09 |