Freiheit; Ronald R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Freiheit; Ronald R..The latest application filed is for "acoustic cabinet".
- Freiheit; Ronald R. - Owatonna MN
| Patent | Date |
|---|---|
| Acoustic cabinet Grant 7,921,960 - Jacobson , et al. April 12, 2 | 2011-04-12 |
| Cabinet grille Grant D606,339 - Jacobson , et al. December 22, 2 | 2009-12-22 |
| Active acoustics performance shell Grant 7,600,608 - Freiheit October 13, 2 | 2009-10-13 |
| Acoustic Cabinet App 20080023266 - Jacobson; Kenneth E. ; et al. | 2008-01-31 |
| Active acoustics performance shell App 20060060420 - Freiheit; Ronald R. | 2006-03-23 |
| System and method for sharing acoustical signal control among acoustical virtual environments App 20050047607 - Freiheit, Ronald R. | 2005-03-03 |
| Acoustical virtual environment Grant 5,525,765 - Freiheit June 11, 1 | 1996-06-11 |
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