Inventory Solution for Network Devices - licensing

Is there anyway to identify (report) all of the assets that have the inventory solution for network devices running on it? It appears that an agent isn't installed but there must be something identifying the assets to determine the count.
Our problem is that we are showing out of compliance numbers under solution licensing. On the initial discovery they didn't set it up correctly so now we have to go back and try to remove the assets that shouldn't be discovered.
I have tried looking at Configure->Agents->All Solution Agents Rollout, Reports->By Solution->Inventory Solution and Configure->Solutions->Inventory.

I also need to know if there is a way to remove the discovered devices from the Inventory Solution for Network Devices

Any suggestions are welcome.