Timolol Maleate Patent Expiration

Timolol Maleate was first introduced by Merck Research Laboratories Div Merck Co Inc in its drug Blocadren on Approved Prior to Jan 1, 1982. Other drugs containing Timolol Maleate are Timoptic In Ocudose, Timoptic, Timolol Maleate, Istalol, Timoptic-Xe. 33 different companies have introduced drugs containing Timolol Maleate.


Timolol Maleate Patents

Given below is the list of patents protecting Timolol Maleate, 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
Timolol Maleate US6174524

(Pediatric)

Gelling ophthalmic compositions containing xanthan gum Sep 26, 2019

(Expired)

Sandoz
Timolol Maleate US6174524 Gelling ophthalmic compositions containing xanthan gum Mar 26, 2019

(Expired)

Sandoz
Istalol US6645963 Prolonged-action eye drop Nov 16, 2018

(Expired)

Bausch And Lomb
Istalol US6335335 Prolonged-action eye drop Nov 02, 2018

(Expired)

Bausch And Lomb



Timolol Maleate's Family Patents

Family Patents

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Timolol Maleate Generic API Manufacturers

Several generic applications have been filed for Timolol Maleate. The first generic version for Timolol Maleate was by Usl Pharma Inc and was approved on Apr 11, 1989. And the latest generic version is by Somerset Therapeutics Llc and was approved on Sep 16, 2024.

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