- Patent application: 2021-01-28
- Request for prior art search: 2022-01-18
- Prior art search report: 2022-04-12
- Notice of preliminary rejection: 2022-09-22
- Written argument and amendment: 2022-11-18
- Decision to grant: 2023-01-27
- Registration: 2023-03-10
- Title of invention: Speech rehabilitation valve for tracheostomy patients
[Note] This case proceeded under regular examination and was registered in about 2 years.
LNB IP Law Firm