Table 7: Summary of patents filed for Corneal Epithelial stem cells used for treating ocular disorders.

No.	Cell Type	Patent No.	Disease	Summary	Route of Administration	Refs.
1	Corneal Epithelial stem cells	US20020039788A1	Damaged or diseased ocular surface	This patent describes the methods to form a bioengineered corneal epithelial composite graft on an extracellular matrix. This graft can aid in the treatment of damaged ocular surface especially corneal epithelium.	Implantation to the target site.	[55]
2	Conjunctival stem cells	US20070218039A1	Damaged or diseased ocular surface	The patent characterise a method where with the help of a simple single medium culture scheme, and a support material a tissue system is formed which is transplanted to the diseased or damaged ocular surface.	Implantation to the target site.	[57]
3	Corneal Endothelial cells with amniotic membrane	US2005O214259A1	Corneal edema, keratoleukoma and keratoconus.	Corneal endothelial cells were harvested, multiplied and grown on a collagen layer (amniotic membrane) to form corneal endothelium-like sheet.	Implantation to the target site.	[59]