Marshall; Leonard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Marshall; Leonard.The latest application filed is for "ribbon microphone with usb output".
- Marshall; Leonard - El Segundo CA
- Marshall; Leonard - Palm Harbor FL
- Marshall; Leonard - Fleet EN
| Patent | Date |
|---|---|
| Ribbon Microphone With Usb Output App 20120300959 - Marshall; Leonard ; et al. | 2012-11-29 |
| Selectable diaphragm condenser microphone Grant 7,889,882 - Marshall February 15, 2 | 2011-02-15 |
| Microphone Grant D594,856 - Marshall June 23, 2 | 2009-06-23 |
| Selectable diaphragm condenser microphone App 20080152174 - Marshall; Leonard | 2008-06-26 |
| Microphone Grant D479,227 - Marshall September 2, 2 | 2003-09-02 |
| One piece transparency mount with spring transparency restraint Grant 5,162,827 - Marshall November 10, 1 | 1992-11-10 |
| Vehicle guidance system operating in the bang bang mode Grant 3,893,536 - Marshall , et al. July 8, 1 | 1975-07-08 |
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