Ramelteon Patent Expiration
Ramelteon is used for treating insomnia. It was first introduced by Takeda Pharmaceuticals Usa Inc
Ramelteon Patents
Given below is the list of patents protecting Ramelteon, 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 |
|---|---|---|---|---|
| Rozerem | US10098866 | Pharmaceutical preparation containing copolyvidone |
Nov 16, 2021
(Expired) | Takeda Pharms Usa |
| Rozerem | US6034239 | Tricyclic compounds, their production and use |
Jul 22, 2019
(Expired) | Takeda Pharms Usa |
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 Ramelteon's patents.
Latest Legal Activities on Ramelteon's Patents
Given below is the list recent legal activities going on the following patents of Ramelteon.
| Activity | Date | Patent Number |
|---|---|---|
 | ||
| Expire Patent Critical
| 21 Nov, 2022 | US10098866 |
| Maintenance Fee Reminder Mailed Critical
| 06 Jun, 2022 | US10098866 |
| Patent Issue Date Used in PTA Calculation Critical
| 16 Oct, 2018 | US10098866 |
| Recordation of Patent Grant Mailed Critical
| 16 Oct, 2018 | US10098866 |
| Email Notification Critical
| 27 Sep, 2018 | US10098866 |
| Issue Notification Mailed Critical
| 26 Sep, 2018 | US10098866 |
| Dispatch to FDC | 17 Sep, 2018 | US10098866 |
| Application Is Considered Ready for Issue Critical
| 15 Sep, 2018 | US10098866 |
| Issue Fee Payment Received Critical
| 11 Sep, 2018 | US10098866 |
| Issue Fee Payment Verified Critical
| 11 Sep, 2018 | US10098866 |
Ramelteon's Family Patents
