Oracle CPU Patches applied list

SQL Query

SQL> col action_time format a30
SQL> select substr(action_time,1,30) action_time,substr(id,1,8) id,substr(action,1,10) action,
substr(version,1,8) version,substr(bundle_series,1,6) bundle,substr(comments,1,20) comments from registry$history;

or

you can also use

SQL> set serverout on
SQL> exec dbms_qopatch.get_sqlpatch_status;