You shoudl be able to achieve it from BDSS-SA ( BASRA- reporting server). Do not you have this in your environment?
Yes, we do, first time using it today as I was not told that we have one.
I do see some templates of the following under Bladelogic\Patch:
Patch Repository Summary
Patch Analysis Policy Summary
Patch Summary by Server
Missing Patch Summary
Missing Patch Details
Patch Analysis Trend by Policy
Patch Trend by Server
Looking to perform a report based on patch installed, am I in the right location?
You are correct path. And also you check in the Server Summary Report - Server Inventory.
if it does not exists, you can create your own custom report using report studio and Query studio.