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Patent

US 6096780

Quaternary ammonium salts and their use

expired A61KA61K31/335A61K31/351

Quick answer

US patent 6096780 (Quaternary ammonium salts and their use) held by Takeda Chemical Industries Ltd. expires Mon Jul 27 2020 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.

Key facts

Applicant
Takeda Chemical Industries Ltd.
Grant date
Tue Aug 01 2000 00:00:00 GMT+0000 (Coordinated Universal Time)
Expiration
Mon Jul 27 2020 00:00:00 GMT+0000 (Coordinated Universal Time)
Claims
22
CPC classes
A61K, A61K31/335, A61K31/351, A61K31/452, A61K31/4523