Allergan Drug Patent Portfolio

Allergan owns 12 orange book drugs protected by 46 US patents with Alocril having the least patent protection, holding only 1 patent. And Oxytrol with maximum patent protection, holding 8 patents. Given below is the list of Allergan's drug patents along with their expiration dates.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US8969566 Processes for preparing heterocyclic compounds including trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide and salts thereof 15 Jun, 2032
Active
US9284314 Processes for preparing heterocyclic compounds including trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide and salts thereof 15 Jun, 2032
Active
US9695122 Processes for preparing heterocyclic compounds including trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide and salts thereof 15 Jun, 2032
Active
US8471025 Crystalline forms of trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide sodium salt 12 Aug, 2031
Active
US8835455 Crystalline forms of trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide sodium salt 08 Oct, 2030
Active
US7612087 Heterocyclic compounds as inhibitors of beta-lactamases 12 Nov, 2026
Active
US7741358 Crystal form of asenapine maleate 06 Oct, 2026
Active
US8022228 Crystal form of asenapine maleate 06 Oct, 2026
Active
US7741358 Crystal form of asenapine maleate 06 Apr, 2026
Active
US8022228 Crystal form of asenapine maleate 06 Apr, 2026
Active
US7112592 Azabicyclic compounds, preparation thereof and use as medicines, in particular as antibacterial agents 07 Jan, 2026
Active
US7410978 Once daily dosage forms of trospium 01 Feb, 2025
Active
US7759359 Method of treating bladder dysfunction with once-a-day trospium salt formulation 04 Nov, 2024
Active
US7763635 Once daily dosage forms of trospium 04 Nov, 2024
Active
US7781448 Once daily dosage forms of trospium 04 Nov, 2024
Active
US7781449 Trospium chloride treatment method 04 Nov, 2024
Active
US7198801 Formulations for transdermal or transmucosal application 25 Jun, 2022 Expired
US6545040 Method of lowering the blood pressure 17 Dec, 2021 Expired
US8178554 Heterocyclic compounds, their preparation and their use as medicaments, in particular as anti-bacterial agents 24 Jul, 2021 Expired
US5763476 Sublingual or buccal pharmaceutical composition 09 Dec, 2020 Expired
US5763476 Sublingual or buccal pharmaceutical composition 09 Jun, 2020 Expired
US7029694 Compositions and methods for transdermal oxybutynin therapy 26 Apr, 2020 Expired
US7179483 Compositions and methods for transdermal oxybutynin therapy 26 Apr, 2020 Expired
US8241662 Unoccluded topical oxybutynin gel composition and methods for transdermal oxybutynin therapy 26 Apr, 2020 Expired
US6743441 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020 Expired
US7081249 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020 Expired
US7081250 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020 Expired
US7081251 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020 Expired
US7081252 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020 Expired
US6333045 Aqueous liquid pharmaceutical composition comprised of gatifloxacin 20 Feb, 2020 Expired
US6333045 Aqueous liquid pharmaceutical composition comprised of gatifloxacin 20 Aug, 2019 Expired
US5387603 1,5,7-trisubstituted indoline compounds and salts thereof 01 Dec, 2018 Expired
US5880283 8-alkoxyquinolonecarboxylic acid hydrate with excellent stability and process for producing the same 05 Jun, 2016 Expired
US5880283 8-alkoxyquinolonecarboxylic acid hydrate with excellent stability and process for producing the same 05 Dec, 2015 Expired
US5061703 Adamantane derivatives in the prevention and treatment of cerebral ischemia 11 Oct, 2015 Expired
US5759580 Compositions containing micronized nebivolol 02 Jun, 2015 Expired
US5601839 Triacetin as a penetration enhancer for transdermal delivery of a basic drug 26 Apr, 2015 Expired
US5834010 Triacetin as a penetration enhancer for transdermal delivery of a basic drug 26 Apr, 2015 Expired
US5061703 Adamantane derivatives in the prevention and treatment of cerebral ischemia 11 Apr, 2015 Expired
US5914334 Stable gel formulation for topical treatment of skin conditions 07 Jun, 2014 Expired
US6258830 Stable gel formulation for topical treatment of skin conditions 07 Jun, 2014 Expired
US5543150 Method of progesterone delivery and affect thereof 15 Sep, 2013 Expired
US5403847 Use of α1C specific compounds to treat benign prostatic hyperlasia 13 Nov, 2012 Expired
US5780485 Use of α1c specific compounds to treat benign prostatic hyperplasia 13 Nov, 2012 Expired
US6015819 Use of alpha-1C specific compounds to treat benign prostatic hyperplasia 13 Nov, 2012 Expired
USRE38628 Pharmaceutical compositions 22 Aug, 2012 Expired


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

Activity Date Patent Number
Patent litigations
Expire Patent 17 Jun, 2024 US8178554
Maintenance Fee Reminder Mailed 01 Apr, 2024 US8241662
Maintenance Fee Reminder Mailed 01 Jan, 2024 US8178554
Payment of Maintenance Fee, 8th Year, Large Entity 10 Aug, 2023 US9284314
Post Issue Communication - Certificate of Correction Denied 25 May, 2023 US7112592
Payment of Maintenance Fee, 12th Year, Large Entity 08 Feb, 2023 US8022228
Payment of Maintenance Fee, 8th Year, Large Entity 10 Aug, 2022 US8969566
Payment of Maintenance Fee, 8th Year, Large Entity 09 Feb, 2022 US8835455
Payment of Maintenance Fee, 12th Year, Large Entity 11 Nov, 2021 US7741358
Payment of Maintenance Fee, 12th Year, Large Entity 03 May, 2021 US7612087
Payment of Maintenance Fee, 4th Year, Large Entity 04 Jan, 2021 US9695122
Payment of Maintenance Fee, 8th Year, Large Entity 28 Dec, 2020 US8471025
Payment of Maintenance Fee, 8th Year, Large Entity 14 Feb, 2020 US8241662
Patent Term Extension Certificate 22 Jan, 2020 US7112592
Patent Term Extension Certificate 16 Dec, 2019 US7112592


Allergan's Drug Patent Litigations

Allergan's drugs have been subject to various legal proceedings, including patent litigations. The earliest legal proceeding was initiated on Jun 12, 1996, against patent number US6545040. The petitioner , challenged the validity of this patent, with XHONNEUX et al as the respondent. Click below to track the latest information on how companies are challenging Allergan's patents.

Patent Proceeding Filing Date Status Respondent Petitioner
Patent litigations
US6545040 December, 2015 Terminated-Denied
(01 Jul, 2016)
Forest Laboratories Holdings Limited Lower Drug Prices For Consumers, LLC
US6545040 June, 1996 Decision
(14 Mar, 2000)
XHONNEUX et al


Allergan Drug Patents' Oppositions Filed in EPO

Allergan drug patents have faced multiple oppositions in the European Patent Office. The earliest opposition was filed on Nov 26, 2019, by Lederer & Keller Patentanwälte Partnerschaft Mbb. This opposition was filed on patent number EP17182561A. Click below to reveal the latest opposition data.


Application Filing Date Opposition Party Legal Status
Patent litigations
EP17182561A Nov, 2019 Lederer & Keller Patentanwälte Partnerschaft mbB Patent maintained as amended


Allergan's Family Patents

Allergan drugs have patent protection in a total of 55 countries. It's US patent count contributes only to 17.0% of its total global patent coverage. 24 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



Allergan Drug List

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


1. Alocril

Alocril is protected by 1 patent, which has expired already. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
USRE38628 Pharmaceutical compositions 22 Aug, 2012
(12 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 Alocril's drug page


2. Avycaz

Avycaz is protected by 8 patents, out of which 1 has expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US8969566 Processes for preparing heterocyclic compounds including trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide and salts thereof 15 Jun, 2032
(7 years from now)
Active
US9284314 Processes for preparing heterocyclic compounds including trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide and salts thereof 15 Jun, 2032
(7 years from now)
Active
US9695122 Processes for preparing heterocyclic compounds including trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide and salts thereof 15 Jun, 2032
(7 years from now)
Active
US8471025 Crystalline forms of trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide sodium salt 12 Aug, 2031
(6 years from now)
Active
US8835455 Crystalline forms of trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide sodium salt 08 Oct, 2030
(5 years from now)
Active
US7612087 Heterocyclic compounds as inhibitors of beta-lactamases 12 Nov, 2026
(2 years from now)
Active
US7112592 Azabicyclic compounds, preparation thereof and use as medicines, in particular as antibacterial agents 07 Jan, 2026
(1 year, 2 months from now)
Active
US8178554 Heterocyclic compounds, their preparation and their use as medicaments, in particular as anti-bacterial agents 24 Jul, 2021
(3 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 Avycaz's drug page


3. Bystolic

Bystolic is protected by 2 patents, out of which all have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US6545040 Method of lowering the blood pressure 17 Dec, 2021
(2 years ago)
Expired
US5759580 Compositions containing micronized nebivolol 02 Jun, 2015
(9 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 Bystolic's drug page


4. Crinone

Crinone is protected by 1 patent, which has expired already. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US5543150 Method of progesterone delivery and affect thereof 15 Sep, 2013
(11 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 Crinone's drug page


5. Gelnique 3%

Gelnique 3% 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
US7198801 Formulations for transdermal or transmucosal application 25 Jun, 2022
(2 years ago)
Expired
US7029694 Compositions and methods for transdermal oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US7179483 Compositions and methods for transdermal oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US8241662 Unoccluded topical oxybutynin gel composition and methods for transdermal oxybutynin therapy 26 Apr, 2020
(4 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 Gelnique 3%'s drug page


Explore Our Curated Drug Screens

Drugs Generating Over $1 Billion in Annual Revenue
Explore the top-performing drugs that dominate the pharmaceutical industry
View List
NCE-1 Patent Expiry in the Next 1 Year
Identify opportunities as new chemical entity (NCE-1) patents approach expiry
View List
Recently Granted Patents in EP
Find the opportunity to file Oppositions
View List

6. Namenda

Namenda is protected by 2 patents, out of which all have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US5061703
(Pediatric)
Adamantane derivatives in the prevention and treatment of cerebral ischemia 11 Oct, 2015
(9 years ago)
Expired
US5061703 Adamantane derivatives in the prevention and treatment of cerebral ischemia 11 Apr, 2015
(9 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 Namenda's drug page


7. Oxytrol

Oxytrol is protected by 8 patents, out of which all have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US6743441 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US7081249 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US7081250 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US7081251 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US7081252 Compositions and methods for minimizing adverse drug experiences associated with oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US7179483 Compositions and methods for transdermal oxybutynin therapy 26 Apr, 2020
(4 years ago)
Expired
US5601839 Triacetin as a penetration enhancer for transdermal delivery of a basic drug 26 Apr, 2015
(9 years ago)
Expired
US5834010 Triacetin as a penetration enhancer for transdermal delivery of a basic drug 26 Apr, 2015
(9 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 Oxytrol's drug page


8. Rapaflo

Rapaflo 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
US5387603 1,5,7-trisubstituted indoline compounds and salts thereof 01 Dec, 2018
(5 years ago)
Expired
US5403847 Use of α1C specific compounds to treat benign prostatic hyperlasia 13 Nov, 2012
(11 years ago)
Expired
US5780485 Use of α1c specific compounds to treat benign prostatic hyperplasia 13 Nov, 2012
(11 years ago)
Expired
US6015819 Use of alpha-1C specific compounds to treat benign prostatic hyperplasia 13 Nov, 2012
(11 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 Rapaflo's drug page


9. Sanctura Xr

Sanctura Xr 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
US7410978 Once daily dosage forms of trospium 01 Feb, 2025
(3 months from now)
Active
US7759359 Method of treating bladder dysfunction with once-a-day trospium salt formulation 04 Nov, 2024
(25 days from now)
Active
US7763635 Once daily dosage forms of trospium 04 Nov, 2024
(25 days from now)
Active
US7781448 Once daily dosage forms of trospium 04 Nov, 2024
(25 days from now)
Active
US7781449 Trospium chloride treatment method 04 Nov, 2024
(25 days 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 Sanctura Xr's drug page


10. Saphris

Saphris is protected by 6 patents, out of which 2 have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US7741358
(Pediatric)
Crystal form of asenapine maleate 06 Oct, 2026
(1 year, 11 months from now)
Active
US8022228
(Pediatric)
Crystal form of asenapine maleate 06 Oct, 2026
(1 year, 11 months from now)
Active
US7741358 Crystal form of asenapine maleate 06 Apr, 2026
(1 year, 5 months from now)
Active
US8022228 Crystal form of asenapine maleate 06 Apr, 2026
(1 year, 5 months from now)
Active
US5763476
(Pediatric)
Sublingual or buccal pharmaceutical composition 09 Dec, 2020
(3 years ago)
Expired
US5763476 Sublingual or buccal pharmaceutical composition 09 Jun, 2020
(4 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 Saphris's drug page


11. Tazorac

Tazorac is protected by 2 patents, out of which all have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US5914334 Stable gel formulation for topical treatment of skin conditions 07 Jun, 2014
(10 years ago)
Expired
US6258830 Stable gel formulation for topical treatment of skin conditions 07 Jun, 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 Tazorac's drug page


12. Zymar

Zymar 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
US6333045
(Pediatric)
Aqueous liquid pharmaceutical composition comprised of gatifloxacin 20 Feb, 2020
(4 years ago)
Expired
US6333045 Aqueous liquid pharmaceutical composition comprised of gatifloxacin 20 Aug, 2019
(5 years ago)
Expired
US5880283
(Pediatric)
8-alkoxyquinolonecarboxylic acid hydrate with excellent stability and process for producing the same 05 Jun, 2016
(8 years ago)
Expired
US5880283 8-alkoxyquinolonecarboxylic acid hydrate with excellent stability and process for producing the same 05 Dec, 2015
(8 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 Zymar's drug page