pattrstorage and auto-saving presets of many instances

I built a M4L MIDI device. It can and should be used in many tracks.

Now, I want to auto-save the state of the patchers when I close my Live session. I’m doing this with a pattrstorage object and a preset bound to it.

Problem is that I need a unique name (varname) for each single pattrstorage object so that presets are stored transparently when I quit live or close a session. How do I *read* the name/scripting name from a pattrstorage object (to tell the preset which pattrstorage to bind to)?

Or is there some generalized way to do this in live even without saving addtl. files to disk?

TIA,
best regards,
Christoph