Barnes; James A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Barnes; James A..The latest application filed is for "parametric in-ear impedance matching device".
- Barnes; James A. - Poway CA
- Barnes; James A. - College Park MD
- Barnes; James A. - Bolder CO
- Barnes; James A. - Boulder CO
- Barnes; James A. - Scottsdale AZ
| Patent | Date |
|---|---|
| Parametric in-ear impedance matching device Grant 9,794,694 - Norris , et al. October 17, 2 | 2017-10-17 |
| Parametric In-ear Impedance Matching Device App 20160269833 - Norris; Elwood Grant ; et al. | 2016-09-15 |
| Parametric transducer headphones App 20160057529 - Kappus; Brian Alan ; et al. | 2016-02-25 |
| Non-aqueous lithium cells Grant 5,714,279 - Zajac, Jr. , et al. February 3, 1 | 1998-02-03 |
| Temperature compensation for a disciplined frequency standard Grant 4,839,613 - Echols , et al. June 13, 1 | 1989-06-13 |
| Fine tuning of atomic frequency standards Grant 4,740,761 - Barnes , et al. April 26, 1 | 1988-04-26 |
| Single Ramp Analog To Digital Converter With Feedback Grant 3,750,142 - Barnes , et al. July 31, 1 | 1973-07-31 |
| SEC | 0000935660 | BARNES JAMES A |
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