Clobazam Patent Expiration

Clobazam is Used for managing seizure disorders. It was first introduced by Lundbeck Pharmaceuticals Llc in its drug Onfi on Oct 21, 2011. Another drug containing Clobazam is Sympazan. 24 different companies have introduced drugs containing Clobazam.


Clobazam Patents

Given below is the list of patents protecting Clobazam, 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
Sympazan US11541002 Oral film compositions and dosage forms having precise active dissolution profiles Jan 31, 2040 Otter Pharms
Sympazan US8603514 Uniform films for rapid dissolve dosage form incorporating taste-masking compositions Apr 03, 2024

(Expired)

Otter Pharms
Sympazan US8765167 Uniform films for rapid-dissolve dosage form incorporating anti-tacking compositions Feb 20, 2024

(Expired)

Otter Pharms



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 Clobazam's patents.

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

Activity Date Patent Number
Patent litigations
Patent Issue Date Used in PTA Calculation 03 Jan, 2023 US11541002
Recordation of Patent Grant Mailed 03 Jan, 2023 US11541002
Issue Notification Mailed 14 Dec, 2022 US11541002
Application Is Considered Ready for Issue 29 Nov, 2022 US11541002
Dispatch to FDC 29 Nov, 2022 US11541002
Workflow - Drawings Finished 28 Nov, 2022 US11541002
PUB Other miscellaneous communication to applicant 03 Nov, 2022 US11541002
Mail PUB other miscellaneous communication to applicant 03 Nov, 2022 US11541002
Issue Fee Payment Received 27 Oct, 2022 US11541002
Issue Fee Payment Verified 27 Oct, 2022 US11541002


Clobazam's Family Patents

Family Patents

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Clobazam Generic API Manufacturers

Several generic applications have been filed for Clobazam. The first generic version for Clobazam was by Bionpharma Inc and was approved on Oct 22, 2018. And the latest generic version is by Accord Healthcare Inc and was approved on Sep 6, 2022.

Given below is the list of companies who have filed for Clobazam generic, along with the locations of their manufacturing plants worldwide.