Last Updated: September 24, 2026

Vifor Intl Company Profile

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What is the competitive landscape for VIFOR INTL

VIFOR INTL has one approved drug.

There are twelve US patents protecting VIFOR INTL drugs.

Summary for Vifor Intl

US Patents:	12
Tradenames:	1
Ingredients:	1
NDAs:	1

Drugs and US Patents for Vifor Intl

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Vifor Intl	KORSUVA	difelikefalin acetate	SOLUTION;INTRAVENOUS	214916-001	Aug 23, 2021		RX	Yes	Yes	7,727,963	⤷ Start Trial	Y	Y		⤷ Start Trial
Vifor Intl	KORSUVA	difelikefalin acetate	SOLUTION;INTRAVENOUS	214916-001	Aug 23, 2021		RX	Yes	Yes	8,236,766	⤷ Start Trial				⤷ Start Trial
Vifor Intl	KORSUVA	difelikefalin acetate	SOLUTION;INTRAVENOUS	214916-001	Aug 23, 2021		RX	Yes	Yes	10,138,270	⤷ Start Trial				⤷ Start Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

International Patents for Vifor Intl Drugs

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Country	Patent Number	Estimated Expiration
South Korea	20140056396	⤷ Start Trial
Japan	2013241447	⤷ Start Trial
Canada	2667460	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration

Supplementary Protection Certificates for Vifor Intl Drugs

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Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
2064228	22C1054	France	⤷ Start Trial	PRODUCT NAME: DIFELIKEFALINE DANS TOUTES LES FORMES PROTEGEES PAR LE BREVET DE BASE; REGISTRATION NO/DATE: EU/1/22/1643 20220427
2064228	C02064228/01	Switzerland	⤷ Start Trial	FORMER OWNER: CARA THERAPEUTICS, INC., US
2064228	821	Finland	⤷ Start Trial
>Patent Number	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration	>SPC Description

Similar Applicant Names

Applicants may be listed under multiple names.
Here is a list of applicants with similar names.

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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.