Intellectual Property

The Company has licensed exclusive rights to the following issued patents:

Patent Name Number
Method of Expanding
Hepatic Precursor Cells
5,576,207
Hepatoblasts and Methods of
Isolating Same
6,069,005
Compositions Comprising
Hepatocyte Precursors
5,789,246
Hepatic Progenitors and
Method of Isolating Same
6,242,252
Proliferation of Hepatocyte
Precursors
6,146,889

Vesta also has rights to more than nine applications pending covering compositions, therapeutic methods, processes, reagents and intermediates.