Hi Pixi, it looks like the patents cover combinations containing...

Hi Pixi, it looks like the patents cover combinations containing PBT2. Composition of matter may give them some coverage for other uses, but not sure.

[The United States Patent and Trademark Office (USPTO) has Granted a composition of matter patent for selected 8-hydroxyquinoline compounds, including its lead clinical asset, PBT2, in the United States. The patent titled '8-Hydroxyquinoline derivatives' also covers pharmaceutical compositions containing PBT2 and selected 8-hydroxyquinoline compounds.]

https://money.cnn.com/news/newsfeeds/articles/marketwire/0654817.htm