If you are current on your CPU patches, you only need to apply 5 patches:
1 Database patch
4 E-Busines Suite patches related to ATG:
7582702 has these two class files:
7327712 replaces the library ccmsssvc.o and updates the fnd/include header files.
7567354 changes the package bodies of procedures Oracleconfigure and ICX_DEFINE_PAGES
7610955 changes the following xml files in $ICX_TOP/mds/icatalog/shopping/webui