Aspirin Patent Expiration

Aspirin is Used for targeting release to the small intestine, reducing fever, and relieving minor aches and pains. It was first introduced by Bayer Healthcare Llc in its drug 8-Hour Bayer on Approved Prior to Jan 1, 1982. Other drugs containing Aspirin are Measurin, Bayer Extra Strength Aspirin For Migraine Pain, Vazalore, Durlaza. 3 different companies have introduced drugs containing Aspirin.


Aspirin Patents

Given below is the list of patents protecting Aspirin, along with the drug name that holds that patent and the company name owning that drug.

Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Vazalore US10646431 PH dependent carriers for targeted release of pharmaceuticals along the gastrointestinal tract, compositions therefrom, and making and using same Sep 29, 2032 Plx Pharma
Vazalore US10786444 PH dependent carriers for targeted release of pharmaceuticals along the gastrointestinal tract, compositions therefrom, and making and using same Sep 29, 2032 Plx Pharma
Vazalore US8865187 Compositions comprising lecithin oils and NSAIDs for protecting the gastrointestinal tract and providing enhanced therapeutic activity Mar 23, 2022

(Expired)

Plx Pharma
Vazalore US9101637 Methods of treating inflammation with compositions comprising lecithin oils and NSAIDS for protecting the gastrointestinal tract and providing enhanced therapeutic activity Mar 23, 2022

(Expired)

Plx Pharma
Vazalore US9216150 pH dependent carriers for targeted release of pharmaceuticals along the gastrointestinal tract, compositions therefrom, and making and using same Sep 29, 2032 Plx Pharma
Vazalore US9226892 pH dependent carriers for targeted release of pharmaceuticals along the gastrointestinal tract, compositions therefrom, and making and using same Sep 29, 2032 Plx Pharma
Vazalore US9351984 Compositions comprising lecithin oils and NSAIDs for protecting the gastrointestinal tract and providing enhanced therapeutic activity Dec 19, 2021

(Expired)

Plx Pharma


A patent's expiry date may change depending upon legal activities going on that patent. Critical activities like abandoning of a patent, term extension of a patent or amendment of its claims can increase or decrease the life of a patent hence affecting its expiry date and in turn affecting the generic launch date of that drug. Tracking these ongoing activities on a patent application helps to keep an eye on the latest developments in the patent process of the drug which can give an idea of how early a drug's generic could be available. The next section provides a list of recent legal activities on Aspirin's patents.

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

Event Date Patent/Publication
Patent litigations
Payment of Maintenance Fee, 4th Yr, Small Entity 14 Mar, 2024 US10786444
Payment of Maintenance Fee, 4th Yr, Small Entity 25 Oct, 2023 US10646431
Expire Patent 18 Sep, 2023 US9101637
Payment of Maintenance Fee, 8th Yr, Small Entity 02 Aug, 2023 US9226892
7.5 yr surcharge - late pmt w/in 6 mo, Small Entity 02 Aug, 2023 US9226892
Payment of Maintenance Fee, 8th Yr, Small Entity 07 Jun, 2023 US9216150
Maintenance Fee Reminder Mailed 03 Apr, 2023 US9101637
Expire Patent 28 Nov, 2022 US8865187
Maintenance Fee Reminder Mailed 13 Jun, 2022 US8865187
Recordation of Patent Grant Mailed 29 Sep, 2020 US10786444



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