Last Updated: May 11, 2026

Profile for European Patent Office Patent: 1856135

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Supplementary Protection Certificates for European Patent Office Patent: 1856135

Country	SPC	SPC Expiration
Netherlands	301039	⤷ Start Trial
Denmark	CA 2020 00018	⤷ Start Trial
Luxembourg	LUC00153	⤷ Start Trial
Germany	122020000021	⤷ Start Trial

US Patent Family Members and Approved Drugs for European Patent Office Patent: 1856135

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.

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US Patent Number	US Expiration Date	US Applicant	US Tradename	Generic Name
⤷ Start Trial	Sep 4, 2031	Rigel Pharms	TAVALISSE	fostamatinib disodium
⤷ Start Trial	Mar 28, 2026	Rigel Pharms	TAVALISSE	fostamatinib disodium
⤷ Start Trial	Jun 12, 2026	Rigel Pharms	TAVALISSE	fostamatinib disodium
⤷ Start Trial	Jan 19, 2026	Rigel Pharms	TAVALISSE	fostamatinib disodium
>US Patent Number	>US Expiration Date	>US Applicant	>US Tradename	>Generic Name

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.