Hello geniuses of the world (yes you are!)

I’m halfway through my PhD and over the years I’ve managed to get quite a bit of funding to purchase equipment with. Now this equipment is awesome and would be fabulous for me to actually setup my own freelance business with after I graduate, but my supervisors tell me it’s university property, eventhough they did fuck all to help me get the funding.

Does anyone know if I have any rights here?