Engebretson; Mark E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Engebretson; Mark E..The latest application filed is for "curved line array loudspeaker".
- Engebretson; Mark E. - Huntington Beach CA
- Engebretson; Mark E. - Encino CA
- Engebretson; Mark E. - Warner Springs CA
| Patent | Date |
|---|---|
| Spiral line array loudspeaker Grant 7,606,384 - Engebretson , et al. October 20, 2 | 2009-10-20 |
| Curved line array loudspeaker Grant 7,606,383 - Engebretson , et al. October 20, 2 | 2009-10-20 |
| Spiral line array loudspeaker App 20080085028 - Engebretson; Mark E. ; et al. | 2008-04-10 |
| Curved line array with horizontal coverage control App 20080085026 - Engebretson; Mark E. ; et al. | 2008-04-10 |
| Curved line array loudspeaker App 20080085027 - Engebretson; Mark E. ; et al. | 2008-04-10 |
| Arbitrary coverage angle sound integrator Grant 7,333,626 - Opie , et al. February 19, 2 | 2008-02-19 |
| Arbitrary coverage angle sound integrator Grant 7,324,654 - Opie , et al. January 29, 2 | 2008-01-29 |
| Arbitrary coverage angle sound integrator App 20060177075 - Opie; Scott M. ; et al. | 2006-08-10 |
| Arbitrary coverage angle sound integrator App 20040131217 - Opie, Scott M. ; et al. | 2004-07-08 |
| Method and system of controlling sound and effects devices by a film strip Grant 4,256,389 - Engebretson March 17, 1 | 1981-03-17 |
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