Last Updated: September 24, 2026

Details for Patent: 12,064,438

Name: Drug Patent Intelligence for US Patent 12064438
Creator: DrugPatentWatch
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Which drugs does patent 12,064,438 protect, and when does it expire?

Patent 12,064,438 protects XOFLUZA and is included in one NDA.

This patent has twenty-one patent family members in fourteen countries.

Summary for Patent: 12,064,438

Title:	Pharmaceutical preparation excellent in light stability and dissolution property
Abstract:	The present invention provides a preparation that is minimally colored through irradiation with light by coating a preparation containing a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, or a crystal thereof with a light stabilizing substance and a polymer, particularly with one or more of titanium oxide and talc used as the light stabilizing substance and hypromellose used as the polymer.
Inventor(s):	Naomi HAYASHI, Masato Gomi, Shohei AIKAWA
Assignee:	Shionogi and Co Ltd
Application Number:	US16/764,067
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 12,064,438
Patent Claim Types: see list of patent claims	Composition; Formulation; Compound; Dosage form;

Drugs Protected by US Patent 12,064,438

Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
Genentech Inc	XOFLUZA	baloxavir marboxil	TABLET;ORAL	210854-001	Oct 24, 2018		DISCN	Yes	No	12,064,438	⤷ Start Trial	Y				⤷ Start Trial
Genentech Inc	XOFLUZA	baloxavir marboxil	TABLET;ORAL	210854-002	Oct 24, 2018	AB	RX	Yes	No	12,064,438	⤷ Start Trial	Y				⤷ Start Trial
Genentech Inc	XOFLUZA	baloxavir marboxil	TABLET;ORAL	210854-003	Mar 18, 2021	AB	RX	Yes	Yes	12,064,438	⤷ Start Trial	Y				⤷ Start Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

International Family Members for US Patent 12,064,438

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	113890	⤷ Start Trial
Australia	2018369241	⤷ Start Trial
Brazil	112020009634	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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