Diclofenac Patent Expiration

Diclofenac is Used for managing pain. It was first introduced by Zyla Life Sciences Us Inc in its drug Zorvolex on Oct 18, 2013.


Diclofenac Patents

Given below is the list of patents protecting Diclofenac, 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
Zorvolex US8679544 Formulation of diclofenac Apr 23, 2030 Zyla
Zorvolex US8999387 Formulation of diclofenac Apr 23, 2030 Zyla
Zorvolex US9017721 Formulation of diclofenac Apr 23, 2030 Zyla
Zorvolex US9173854 Formulation of diclofenac Apr 23, 2030 Zyla
Zorvolex US9180095 Formulation of diclofenac Apr 23, 2030 Zyla
Zorvolex US9180096 Formulation of diclofenac Apr 23, 2030 Zyla
Zorvolex US9186328 Formulation of diclofenac Apr 23, 2030 Zyla


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 Diclofenac's patents.

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

Event Date Patent/Publication
Patent litigations
Payment of Maintenance Fee, 8th Yr, Small Entity 17 May, 2023 US9186328
Payment of Maintenance Fee, 8th Yr, Small Entity 10 May, 2023 US9180095
Payment of Maintenance Fee, 8th Yr, Small Entity 10 May, 2023 US9180096
Payment of Maintenance Fee, 8th Yr, Small Entity 03 May, 2023 US9173854
Payment of Maintenance Fee, 8th Yr, Small Entity 28 Oct, 2022 US9017721
Payment of Maintenance Fee, 8th Yr, Small Entity 07 Oct, 2022 US8999387
Applicant Has Filed a Verified Statement of Small Entity Status in Compliance with 37 CFR 1.27 07 Jul, 2022 US9017721
Applicant Has Filed a Verified Statement of Small Entity Status in Compliance with 37 CFR 1.27 07 Jul, 2022 US8999387
Payment of Maintenance Fee, 8th Yr, Small Entity 27 Sep, 2021 US8679544(Litigated)
Payment of Maintenance Fee, 4th Yr, Small Entity 17 May, 2019 US9186328



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