Unique Product Content Types under an instance of Node Content

Hi,

My catalog contains a collection of node content pages and under any node could be a number of different implementations of a product content type.

When loading my category node, I'd like to run a query to return the unique product content types which are children of that node. For example when loading a page, if there are 100 of one product and only 2 of another type, i'd like my query to return the 2 unique types.

My site is using Find so maybe there's a clever option using that.

Has anyone had to do this before?

Thanks in advance!