TriStem has three families of patents that protect its technology and its use.

Granted, or in prosecution in all major territories, the UK patents are included here as examples of the scope of the coverage of these.

TriStem has successfully defended its patent position in the USA and the People’s Republic of China where other groups have tried to patent methods of creating stem cells from mature cells.

Conversion of a more committed cell into an undifferentiated cell


This patent family protects the method by which TriStem can create a stem cell from a fully differentiated cell.

Device and method to prepare undifferentiated cells


This patent family protects a device and kit for the creation of stem cells from fully differentiated cells.

Treatment using reprogrammed mature adult cell


This patent family protects the treatment of a wide range of major diseases using stem cells created from differentiated cells.