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Patent applications and USPTO patent grants for Barker; Christian K..The latest application filed is for "automatic volume control for land mobile radio".
Patent | Date |
---|---|
Automatic volume control for land mobile radio Grant 11,374,546 - Barker , et al. June 28, 2 | 2022-06-28 |
Automatic Volume Control For Land Mobile Radio App 20200067474 - Barker; Christian K. ;   et al. | 2020-02-27 |
Automatic volume control for land mobile radio Grant 10,469,047 - Barker , et al. No | 2019-11-05 |
Automatic Volume Control For Land Mobile Radio App 20180205354 - Barker; Christian K. ;   et al. | 2018-07-19 |
Automatic volume control for land mobile radio Grant 9,923,534 - Barker , et al. March 20, 2 | 2018-03-20 |
Automatic Volume Control For Land Mobile Radio App 20160087597 - Barker; Christian K. ;   et al. | 2016-03-24 |
Dual push-to-talk radio microphone Grant D725,085 - Barker , et al. March 24, 2 | 2015-03-24 |
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