(Butran patches) acts via opioid
receptors while marijuana acts on cannabinoid
receptors. Some neurons have both types of receptors and both drugs can influence these neurons. But apart from this, buprenorphine cannot directly neutralize the high from marijuana. I feel that the reason for your not getting a good high is that you have developed tolerance to marijuana, which is quite common after regular use. Try discontinuing marijuana for a few months to allow your brain cells to return to their previous state.
Hope this helps you. Best wishes.