Nalpropion Drug Patent Portfolio

Nalpropion owns 1 orange book drug protected by 22 US patents Given below is the list of Nalpropion's drug patents along with their expiration dates.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10231964 Compositions and methods for weight loss in at risk patient populations 02 Jul, 2034
Active
US10828294 Compositions and methods for weight loss in at risk patient populations 02 Jul, 2034
Active
US10835527 Compositions and methods for reducing major adverse cardiovascular events 02 Jul, 2034
Active
US11998542 Compositions and methods for reducing major adverse cardiovascular events 02 Jul, 2034
Active
US9633575 Methods of treating overweight and obesity 25 Jun, 2033
Active
US10403170 Methods of treating overweight and obesity 05 Jun, 2033
Active
US11139056 Methods of treating overweight and obesity 05 Jun, 2033
Active
US9248123 Methods of providing weight loss therapy in patients with major depression 13 Jan, 2032
Active
US11033543 Methods of providing weight loss therapy in patients with major depression 10 Jan, 2031
Active
US8916195 Sustained release formulation of naltrexone 02 Feb, 2030
Active
US11324741 Methods for treating visceral fat conditions 29 May, 2029
Active
US8088786 Layered pharmaceutical formulations 03 Feb, 2029
Active
US10307376 Methods for administering weight loss medications 08 Nov, 2027
Active
US12048769 Methods for administering weight loss medications 08 Nov, 2027
Active
US8318788 Layered pharmaceutical formulations 08 Nov, 2027
Active
US8722085 Methods for administering weight loss medications 08 Nov, 2027
Active
US9125868 Methods for administering weight loss medications 08 Nov, 2027
Active
US9107837 Sustained release formulation of naltrexone 04 Jun, 2027
Active
US7375111 Compositions for affecting weight loss 26 Mar, 2025
Active
US7462626 Compositions for affecting weight loss 20 Jul, 2024 Expired
US8815889 Compositions and methods for increasing insulin sensitivity 20 Jul, 2024 Expired
US11278544 Compositions for affecting weight loss 21 Apr, 2024 Expired


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

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 12th Yr, Small Entity 15 May, 2024 US8318788 (Litigated)
Payment of Maintenance Fee, 4th Yr, Small Entity 01 May, 2024 US10835527
Payment of Maintenance Fee, 4th Yr, Small Entity 24 Apr, 2024 US10828294
Payment of Maintenance Fee, 8th Yr, Small Entity 19 Jul, 2023 US9248123
Payment of Maintenance Fee, 12th Yr, Small Entity 21 Jun, 2023 US8088786 (Litigated)
Payment of Maintenance Fee, 8th Yr, Small Entity 22 Feb, 2023 US9125868
Payment of Maintenance Fee, 4th Yr, Small Entity 15 Feb, 2023 US10403170
Payment of Maintenance Fee, 8th Yr, Small Entity 01 Feb, 2023 US9107837
Applicant Has Filed a Verified Statement of Small Entity Status in Compliance with 37 CFR 1.27 09 Jan, 2023 US9125868
Payment of Maintenance Fee, 4th Yr, Small Entity 16 Nov, 2022 US10307376
Payment of Maintenance Fee, 4th Yr, Small Entity 07 Sep, 2022 US10231964
Payment of Maintenance Fee, 8th Yr, Small Entity 08 Jun, 2022 US8916195
Patent Issue Date Used in PTA Calculation 10 May, 2022 US11324741
Recordation of Patent Grant Mailed 10 May, 2022 US11324741
Email Notification 21 Apr, 2022 US11324741


Nalpropion's Family Patents

Nalpropion drugs have patent protection in a total of 43 countries. It's US patent count contributes only to 27.3% of its total global patent coverage. 8 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



Nalpropion Drug List

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


1. Contrave

Contrave is protected by 22 patents, out of which 3 have expired. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10231964 Compositions and methods for weight loss in at risk patient populations 02 Jul, 2034
(9 years from now)
Active
US10828294 Compositions and methods for weight loss in at risk patient populations 02 Jul, 2034
(9 years from now)
Active
US10835527 Compositions and methods for reducing major adverse cardiovascular events 02 Jul, 2034
(9 years from now)
Active
US11998542 Compositions and methods for reducing major adverse cardiovascular events 02 Jul, 2034
(9 years from now)
Active
US9633575 Methods of treating overweight and obesity 25 Jun, 2033
(8 years from now)
Active
US10403170 Methods of treating overweight and obesity 05 Jun, 2033
(8 years from now)
Active
US11139056 Methods of treating overweight and obesity 05 Jun, 2033
(8 years from now)
Active
US9248123 Methods of providing weight loss therapy in patients with major depression 13 Jan, 2032
(7 years from now)
Active
US11033543 Methods of providing weight loss therapy in patients with major depression 10 Jan, 2031
(6 years from now)
Active
US8916195 Sustained release formulation of naltrexone 02 Feb, 2030
(5 years from now)
Active
US11324741 Methods for treating visceral fat conditions 29 May, 2029
(4 years from now)
Active
US8088786 Layered pharmaceutical formulations 03 Feb, 2029
(4 years from now)
Active
US10307376 Methods for administering weight loss medications 08 Nov, 2027
(2 years from now)
Active
US12048769 Methods for administering weight loss medications 08 Nov, 2027
(2 years from now)
Active
US8318788 Layered pharmaceutical formulations 08 Nov, 2027
(2 years from now)
Active
US8722085 Methods for administering weight loss medications 08 Nov, 2027
(2 years from now)
Active
US9125868 Methods for administering weight loss medications 08 Nov, 2027
(2 years from now)
Active
US9107837 Sustained release formulation of naltrexone 04 Jun, 2027
(2 years from now)
Active
US7375111 Compositions for affecting weight loss 26 Mar, 2025
(4 months from now)
Active
US7462626 Compositions for affecting weight loss 20 Jul, 2024
(3 months ago)
Expired
US8815889 Compositions and methods for increasing insulin sensitivity 20 Jul, 2024
(3 months ago)
Expired
US11278544 Compositions for affecting weight loss 21 Apr, 2024
(6 months 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 Contrave's drug page


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