To verify what patches have been applied to a domain, use the listDomainPatchInventory.sh command. Use this command with the OPatch lsinventory command to verify that the patch has been applied successfully.
For example:
cd ORACLE_HOME/OPatch/bin ./listDomainPatchInventory.sh DOMAIN_HOME
This command indicates that a specific interim patch has been applied.
You should see the same list of patches in both the domain inventory and in the inventory for each Oracle home. If not, re-apply the patch. When you re-apply the patch, only the missing steps will be executed. The tasks that have already been performed will be skipped.