Trypan Blue Patent Expiration
Trypan Blue is used for aiding in the identification and removal of intraocular membranes during ophthalmic surgery. It was first introduced by Dorc International Bv
Trypan Blue Patents
Given below is the list of patents protecting Trypan Blue, 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 |
|---|---|---|---|---|
| Membraneblue | US6372449 | Opthalmic methods and uses |
Nov 12, 2019
(Expired) | Dorc |
| Visionblue | US6367480 | Methods for visualizing the anterior lens capsule of the human eye |
Oct 26, 2019
(Expired) | Dorc |
| Membraneblue | US6696430 | Use of vital dye for facilitating surgical procedures for vitreo-retinal surgery |
May 07, 2019
(Expired) | Dorc |
| Visionblue | US6720314 | Use of a vital dye for facilitating surgical procedures for cataract extraction |
May 07, 2019
(Expired) | Dorc |
Trypan Blue's Family Patents
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