Supernus Pharms Drug Patent Portfolio

Supernus Pharms owns 5 orange book drugs protected by 57 US patents with Qelbree having the least patent protection, holding only 5 patents. And Osmolex Er with maximum patent protection, holding 20 patents. Given below is the list of Supernus Pharms's drug patents along with their expiration dates.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US11065213 Amantadine compositions and preparations thereof 23 Aug, 2038
Active
US11077073 Methods of using amantadine compositions 23 Aug, 2038
Active
US10213393 Composition and method for treating neurological disease 15 Feb, 2038
Active
US10213394 Composition and method for treating neurological disease 15 Feb, 2038
Active
US10500170 Composition and method for treating neurological disease 15 Feb, 2038
Active
US10500171 Composition and method for treating neurological disease 15 Feb, 2038
Active
US10500172 Composition and method for treating neurological disease 15 Feb, 2038
Active
US10512617 Composition and method for treating neurological disease 15 Feb, 2038
Active
US11890261 Composition and method for treating neurological disease 15 Feb, 2038
Active
US10154971 Methods of administering amantadine 04 Dec, 2034
Active
US10646456 Methods of administering amantadine 17 Jun, 2034
Active
US11903908 Methods of administering amantadine 17 Jun, 2034
Active
US9358204 Formulations of viloxazine 07 Feb, 2033
Active
US9603853 Formulations of viloxazine 07 Feb, 2033
Active
US9662338 Formulations of viloxazine 07 Feb, 2033
Active
US11197835 Method of administering amantadine prior to a sleep period 02 Dec, 2030
Active
US8741343 Method of administering amantadine prior to a sleep period 02 Dec, 2030
Active
US9867791 Method of administering amantadine prior to a sleep period 02 Dec, 2030
Active
US9867792 Method of administering amantadine prior to a sleep period 02 Dec, 2030
Active
US9867793 Method of administering amantadine prior to a sleep period 02 Dec, 2030
Active
US9877933 Method of administering amantadine prior to a sleep period 02 Dec, 2030
Active
US8252331 Osmotic device containing amantadine and an osmotic salt 13 Mar, 2030
Active
US11324753 Method of treatment of attention deficit/hyperactivity disorder (ADHD) 04 Sep, 2029
Active
US11458143 Method of treatment of attention deficit/hyperactivity disorder (ADHD) 04 Sep, 2029
Active
US8298576 Sustained-release formulations of topiramate 04 Apr, 2028
Active
US8389578 Composition and method for treating neurological disease 22 Jan, 2028
Active
US10314790 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US8298580 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US8663683 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US8877248 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US8889191 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US8992989 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US9549940 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US9555004 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US9622983 Sustained-release formulations of topiramate 16 Nov, 2027
Active
US10220042 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US11166960 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US11896599 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US7722898 Modified-release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US7910131 Method of treating seizures using modified release formulations of oxcarbazepine 13 Apr, 2027
Active
US8617600 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US8821930 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US9119791 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US9351975 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US9370525 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US9855278 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
Active
US8574626 Osmotic device containing amantadine and an osmotic salt 28 Nov, 2025
Active
US8796337 Composition and method for treating neurological disease 23 Nov, 2025
Active
US8889740 Composition and method for treating neurological disease 23 Nov, 2025
Active
US8895614 Composition and method for treating neurological disease 23 Nov, 2025
Active
US8895615 Composition and method for treating neurological disease 23 Nov, 2025
Active
US8895616 Composition and method for treating neurological disease 23 Nov, 2025
Active
US8895617 Composition and method for treating neurological disease 23 Nov, 2025
Active
US8895618 Composition and method for treating neurological disease 23 Nov, 2025
Active
US8987333 Composition and method for treating neurological disease 23 Nov, 2025
Active
US9072697 Composition and method for treating neurological disease 23 Nov, 2025
Active
USRE39069 Multi-layered osmotic device 29 May, 2018 Expired


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

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 12th Year, Large Entity 30 Apr, 2024 US8298580 (Litigated)
Maintenance Fee Reminder Mailed 15 Apr, 2024 US8252331
Recordation of Patent eGrant 20 Feb, 2024 US11903908
Recordation of Patent Grant Mailed 20 Feb, 2024 US11903908
Patent Issue Date Used in PTA Calculation 20 Feb, 2024 US11903908
Mail Patent eGrant Notification 20 Feb, 2024 US11903908
Patent eGrant Notification 20 Feb, 2024 US11903908
Email Notification 20 Feb, 2024 US11903908
Recordation of Patent Grant Mailed 13 Feb, 2024 US11896599
Patent Issue Date Used in PTA Calculation 13 Feb, 2024 US11896599
Email Notification 13 Feb, 2024 US11896599
Mail Patent eGrant Notification 13 Feb, 2024 US11896599
Patent eGrant Notification 13 Feb, 2024 US11896599
Recordation of Patent eGrant 13 Feb, 2024 US11896599
Email Notification 06 Feb, 2024 US11890261


Supernus Pharms's Drug Patent Litigations

Supernus Pharms's drugs have been subject to various legal proceedings, including patent litigations. The earliest legal proceeding was initiated on Feb 16, 2021, against patent number US11324753. The petitioner , challenged the validity of this patent, with Supernus Pharmaceuticals, Inc. as the respondent. Click below to track the latest information on how companies are challenging Supernus Pharms's patents.

Patent Proceeding Filing Date Status Respondent Petitioner
Patent litigations
US11324753 February, 2021 Decision
(05 Oct, 2021)
Supernus Pharmaceuticals, Inc.


Supernus Pharms Drug Patents' Oppositions Filed in EPO

Supernus Pharms drug patents have faced multiple oppositions in the European Patent Office. The earliest opposition was filed on Apr 20, 2017, by Ahrens, Gabriele. This opposition was filed on patent number EP10835150A. Click below to reveal the latest opposition data.


Application Filing Date Opposition Party Legal Status
Patent litigations
EP10835150A Apr, 2017 Ahrens, Gabriele Patent maintained as amended


Supernus Pharms's Family Patents

Supernus Pharms drugs have patent protection in a total of 14 countries. It has a significant patent presence in the US with 63.2% of its patents being US patents. 3 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



Supernus Pharms Drug List

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


1. Gocovri

Gocovri is protected by 19 patents, out of which none have expired yet. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US11065213 Amantadine compositions and preparations thereof 23 Aug, 2038
(13 years from now)
Active
US11077073 Methods of using amantadine compositions 23 Aug, 2038
(13 years from now)
Active
US10154971 Methods of administering amantadine 04 Dec, 2034
(9 years from now)
Active
US10646456 Methods of administering amantadine 17 Jun, 2034
(9 years from now)
Active
US11903908 Methods of administering amantadine 17 Jun, 2034
(9 years from now)
Active
US11197835 Method of administering amantadine prior to a sleep period 02 Dec, 2030
(5 years from now)
Active
US8741343 Method of administering amantadine prior to a sleep period 02 Dec, 2030
(5 years from now)
Active
US9867791 Method of administering amantadine prior to a sleep period 02 Dec, 2030
(5 years from now)
Active
US9867792 Method of administering amantadine prior to a sleep period 02 Dec, 2030
(5 years from now)
Active
US9867793 Method of administering amantadine prior to a sleep period 02 Dec, 2030
(5 years from now)
Active
US9877933 Method of administering amantadine prior to a sleep period 02 Dec, 2030
(5 years from now)
Active
US8389578 Composition and method for treating neurological disease 22 Jan, 2028
(3 years from now)
Active
US8796337 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8889740 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895614 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895615 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895616 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895617 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895618 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active

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 Gocovri's drug page


2. Osmolex Er

Osmolex Er is protected by 20 patents, out of which 1 has expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10213393 Composition and method for treating neurological disease 15 Feb, 2038
(13 years from now)
Active
US10213394 Composition and method for treating neurological disease 15 Feb, 2038
(13 years from now)
Active
US10500170 Composition and method for treating neurological disease 15 Feb, 2038
(13 years from now)
Active
US10500171 Composition and method for treating neurological disease 15 Feb, 2038
(13 years from now)
Active
US10500172 Composition and method for treating neurological disease 15 Feb, 2038
(13 years from now)
Active
US10512617 Composition and method for treating neurological disease 15 Feb, 2038
(13 years from now)
Active
US11890261 Composition and method for treating neurological disease 15 Feb, 2038
(13 years from now)
Active
US8252331 Osmotic device containing amantadine and an osmotic salt 13 Mar, 2030
(5 years from now)
Active
US8389578 Composition and method for treating neurological disease 22 Jan, 2028
(3 years from now)
Active
US8574626 Osmotic device containing amantadine and an osmotic salt 28 Nov, 2025
(11 months from now)
Active
US8796337 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8889740 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895614 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895615 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895616 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895617 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8895618 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US8987333 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
US9072697 Composition and method for treating neurological disease 23 Nov, 2025
(11 months from now)
Active
USRE39069 Multi-layered osmotic device 29 May, 2018
(6 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 Osmolex Er's drug page


3. Oxtellar Xr

Oxtellar Xr is protected by 11 patents, out of which none have expired yet. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10220042 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US11166960 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US11896599 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US7722898 Modified-release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US7910131 Method of treating seizures using modified release formulations of oxcarbazepine 13 Apr, 2027
(2 years from now)
Active
US8617600 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US8821930 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US9119791 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US9351975 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US9370525 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active
US9855278 Modified release preparations containing oxcarbazepine and derivatives thereof 13 Apr, 2027
(2 years from now)
Active

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 Oxtellar Xr's drug page


4. Qelbree

Qelbree is protected by 5 patents, out of which none have expired yet. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US9358204 Formulations of viloxazine 07 Feb, 2033
(8 years from now)
Active
US9603853 Formulations of viloxazine 07 Feb, 2033
(8 years from now)
Active
US9662338 Formulations of viloxazine 07 Feb, 2033
(8 years from now)
Active
US11324753 Method of treatment of attention deficit/hyperactivity disorder (ADHD) 04 Sep, 2029
(4 years from now)
Active
US11458143 Method of treatment of attention deficit/hyperactivity disorder (ADHD) 04 Sep, 2029
(4 years from now)
Active

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 Qelbree's drug page


5. Trokendi Xr

Trokendi Xr is protected by 10 patents, out of which none have expired yet. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US8298576 Sustained-release formulations of topiramate 04 Apr, 2028
(3 years from now)
Active
US10314790 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US8298580 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US8663683 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US8877248 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US8889191 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US8992989 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US9549940 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US9555004 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active
US9622983 Sustained-release formulations of topiramate 16 Nov, 2027
(2 years from now)
Active

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 Trokendi Xr's drug page


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