Phenylephrine Hydrochloride Patent Expiration
Phenylephrine Hydrochloride was first introduced by Hikma Pharmaceuticals Usa Inc
Phenylephrine Hydrochloride Patents
Given below is the list of patents protecting Phenylephrine Hydrochloride, 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 |
|---|---|---|---|---|
| Immphentiv | US11213480 | Phenylephrine hydrochloride ready-to-use solution | Sep 26, 2036 | Hikma |
| Immphentiv | US12257342 | Phenylephrine hydrochloride ready-to-use solution | Sep 26, 2036 | Hikma |
| Immphentiv | US11471400 | Phenylephrine hydrochloride ready-to-use solution | Aug 05, 2036 | Hikma |
| Phenylephrine Hydrochloride | US8859623 | Methods and compositions of stable phenylephrine formulations | Nov 14, 2033 | Paragon Bioteck |
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 Phenylephrine Hydrochloride's patents.
Latest Legal Activities on Phenylephrine Hydrochloride's Patents
Given below is the list recent legal activities going on the following patents of Phenylephrine Hydrochloride.
| Activity | Date | Patent Number |
|---|---|---|
 | ||
| 7.5 yr surcharge - late pmt w/in 6 mo, Large Entity | 03 Oct, 2022 | US8859623 |
| Payment of Maintenance Fee, 8th Year, Large Entity | 03 Oct, 2022 | US8859623 |
| Application Return from OIPE | 18 Jul, 2022 | US8859623 |
| Correspondence Address Change Critical
| 18 Jul, 2022 | US8859623 |
| Application Return TO OIPE | 18 Jul, 2022 | US8859623 |
| Maintenance Fee Reminder Mailed Critical
| 06 Jun, 2022 | US8859623 |
| Appeal to Court of Appeals | 13 Jan, 2017 | US8859623 |
| Termination or Final Written Decision | 14 Nov, 2016 | US8859623 |
| Application ready for PDX access by participating foreign offices Critical
| 31 Aug, 2015 | US8859623 |
| Petition Requesting Trial | 11 May, 2015 | US8859623 |
Phenylephrine Hydrochloride's Family Patents
