Hmm, I seem to remember someone had written a maxpat to pd converter in SuperCollider but after googling for ages I just can't find it. Searched this forum too..

anyone have any ideas?

I just looked at this maxpat, couldn't get my head around though: Why would someone need curly cables on his/her patch? It looks weird...

http://www.fredrikolofsson.com/pages/code-sc.html
only converts to max 4 format, but you can open these in pd and see what you get.