Liao; Hsu-Ching
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liao; Hsu-Ching.The latest application filed is for "forming a piezoelectric membrane".
- Liao; Hsu-Ching - Taipei N/A TW
- Liao; Hsu-Ching - Taichung City TW
- Liao; Hsu-Ching - Taichung N/A TW
| Patent | Date |
|---|---|
| Electret loudspeaker device Grant 8,855,339 - Lee , et al. October 7, 2 | 2014-10-07 |
| Forming A Piezoelectric Membrane App 20140134418 - Lee; Chih-Kung ; et al. | 2014-05-15 |
| Electret loudspeaker device Grant 8,699,730 - Lee , et al. April 15, 2 | 2014-04-15 |
| Electret Loudspeaker Device App 20130044906 - Lee; Chih-Kung ; et al. | 2013-02-21 |
| Electret Loudspeaker Device App 20130044905 - Lee; Chih-Kung ; et al. | 2013-02-21 |
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