+I use the following search (in my case as a saved search in emacs).
+
+ tag:notmuch::patch and not tag:notmuch::pushed and \
+ not tag:notmuch::obsolete and not tag:notmuch::wip \
+ and not tag:notmuch::moreinfo
+
+Another interesting search is
+
+ tag:notmuch::reviewed and not tag:notmuch::pushed
+
+