Bonding structure of diaphragm for receiver
US-11212616-B2 · Dec 28, 2021 · US
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Em Tech Co Ltd patents in 2021
Em Tech Co Ltd was listed as an assignee on 22 patent publications in 2021.
| Metric | Value |
|---|---|
| Company | Em Tech Co Ltd |
| Year | 2021 |
| Patents | 22 |
Patents
Representative publications for Em Tech Co Ltd in 2021.
Open-air type earphone with bracket forming bass pipe
US-11206480-B2 · Dec 21, 2021 · US
Sound generating actuator
US-11206490-B2 · Dec 21, 2021 · US
Bone conduction speaker
US-11206500-B2 · Dec 21, 2021 · US
Microspeaker Module having Duct Communicating with Vent Hole
US-2021392432-A1 · Dec 16, 2021 · US
Top CPC classifications
Most common classification codes for Em Tech Co Ltd in 2021.
| CPC | Patents |
|---|---|
| H04R1/1016 | 9 |
| H04R1/1091 | 8 |
| H04R1/1075 | 7 |
| H04R2460/11 | 7 |
| H04R9/06 | 6 |
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