US 6663883
Matrix adhering to nasal mucosa
expired A61KA61K9/0043A61P
Quick answer
US patent 6663883 (Matrix adhering to nasal mucosa) held by Takeda Chemical Industries Ltd. expires Mon Dec 11 2023 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Dec 16 2003 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Dec 11 2023 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 2
- CPC classes
- A61K, A61K9/0043, A61P, A61P25/20, A61P25/22