Schering Drug Patent Portfolio

Schering owns 2 orange book drugs protected by 16 US patents Given below is the list of Schering's drug patents along with their expiration dates.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US6790837 Ribavirin syrup formulations 05 Oct, 2023 Expired
US6790837 Ribavirin syrup formulations 05 Apr, 2023 Expired
US8263600 Antifungal composition with enhanced bioavailability 01 Apr, 2022 Expired
US5661151 Tetrahydrofuran antifungals 19 Jul, 2019 Expired
US6958337 Crystalline antifungal polymorph 05 Oct, 2018 Expired
US6172046 Combination therapy for eradicating detectable HCV-RNA in patients having chronic Hepatitis C infection 21 Mar, 2018 Expired
US6472373 Combination therapy for eradicating detectable HCV-RNA in antiviral treatment naive patients having chronic hepatitis C infection 21 Mar, 2018 Expired
US6172046 Combination therapy for eradicating detectable HCV-RNA in patients having chronic Hepatitis C infection 21 Sep, 2017 Expired
US6472373 Combination therapy for eradicating detectable HCV-RNA in antiviral treatment naive patients having chronic hepatitis C infection 21 Sep, 2017 Expired
US6177074 Polyethylene glycol modified interferon therapy 01 May, 2017 Expired
US6461605 Continuous low-dose cytokine infusion therapy 01 May, 2017 Expired
US6524570 Polyethylene glycol modified interferon therapy 01 May, 2017 Expired
US6177074 Polyethylene glycol modified interferon therapy 01 Nov, 2016 Expired
US6461605 Continuous low-dose cytokine infusion therapy 01 Nov, 2016 Expired
US6524570 Polyethylene glycol modified interferon therapy 01 Nov, 2016 Expired
US5703079 Tetrahydrofuran antifungals 26 Aug, 2014 Expired


Given below is the list of recent legal activities going on the following drug patents of Schering.

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 8th Year, Large Entity 30 Apr, 2024 US9493582
Maintenance Fee Reminder Mailed 29 Apr, 2024 US8263600
Payment of Maintenance Fee, 8th Year, Large Entity 10 Nov, 2023 US9358297
Correspondence Address Change 04 Dec, 2022 US9750822
Correspondence Address Change 04 Dec, 2022 US10117951
Correspondence Address Change 04 Dec, 2022 US8410077
Correspondence Address Change 04 Dec, 2022 US9493582
Payment of Maintenance Fee, 8th Year, Large Entity 12 Oct, 2022 US9023790 (Litigated)
Payment of Maintenance Fee, 4th Year, Large Entity 20 Apr, 2022 US10117951
Payment of Maintenance Fee, 4th Year, Large Entity 17 Feb, 2021 US9750822
Payment of Maintenance Fee, 8th Year, Large Entity 17 Sep, 2020 US8410077
Payment of Maintenance Fee, 4th Year, Large Entity 30 Apr, 2020 US9493582
Payment of Maintenance Fee, 8th Year, Large Entity 18 Feb, 2020 US8263600
Payment of Maintenance Fee, 4th Year, Large Entity 18 Nov, 2019 US9358297
Patent Issue Date Used in PTA Calculation 06 Nov, 2018 US10117951


Schering's Family Patents

Schering drugs have patent protection in a total of 26 countries. It's US patent count contributes only to 13.7% of its total global patent coverage. 17 countries have all of their patents expired or invalidated which has opened up potential generic launch opportunities in these countries. Click below to unlock the full patent family tree.

Family Patents



Schering Drug List

Given below is the complete list of Schering's drugs and the patents protecting them.


1. Noxafil

Noxafil is protected by 4 patents, out of which all have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US8263600 Antifungal composition with enhanced bioavailability 01 Apr, 2022
(2 years ago)
Expired
US5661151 Tetrahydrofuran antifungals 19 Jul, 2019
(5 years ago)
Expired
US6958337 Crystalline antifungal polymorph 05 Oct, 2018
(6 years ago)
Expired
US5703079 Tetrahydrofuran antifungals 26 Aug, 2014
(10 years ago)
Expired

Discover which of these patents contain the active ingredient(API) of the drug, their family patents, along with litigation and legal activity details of these patents on Noxafil's drug page


2. Rebetol

Rebetol is protected by 12 patents, out of which all have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US6790837
(Pediatric)
Ribavirin syrup formulations 05 Oct, 2023
(1 year, 1 day ago)
Expired
US6790837 Ribavirin syrup formulations 05 Apr, 2023
(1 year, 6 months ago)
Expired
US6172046
(Pediatric)
Combination therapy for eradicating detectable HCV-RNA in patients having chronic Hepatitis C infection 21 Mar, 2018
(6 years ago)
Expired
US6472373
(Pediatric)
Combination therapy for eradicating detectable HCV-RNA in antiviral treatment naive patients having chronic hepatitis C infection 21 Mar, 2018
(6 years ago)
Expired
US6172046 Combination therapy for eradicating detectable HCV-RNA in patients having chronic Hepatitis C infection 21 Sep, 2017
(7 years ago)
Expired
US6472373 Combination therapy for eradicating detectable HCV-RNA in antiviral treatment naive patients having chronic hepatitis C infection 21 Sep, 2017
(7 years ago)
Expired
US6177074
(Pediatric)
Polyethylene glycol modified interferon therapy 01 May, 2017
(7 years ago)
Expired
US6461605
(Pediatric)
Continuous low-dose cytokine infusion therapy 01 May, 2017
(7 years ago)
Expired
US6524570
(Pediatric)
Polyethylene glycol modified interferon therapy 01 May, 2017
(7 years ago)
Expired
US6177074 Polyethylene glycol modified interferon therapy 01 Nov, 2016
(7 years ago)
Expired
US6461605 Continuous low-dose cytokine infusion therapy 01 Nov, 2016
(7 years ago)
Expired
US6524570 Polyethylene glycol modified interferon therapy 01 Nov, 2016
(7 years ago)
Expired

Discover which of these patents contain the active ingredient(API) of the drug, their family patents, along with litigation and legal activity details of these patents on Rebetol's drug page


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