DBA_EXP_OBJECTS

Objects that have been incrementally exported

Columns
   ___________________________
 
   OWNER
      Owner of exported object
   OBJECT_NAME
      Name of exported object
   OBJECT_TYPE
      Type of exported object
   CUMULATIVE
      Timestamp of last cumulative export
   INCREMENTAL
      Timestamp of last incremental export
   EXPORT_VERSION
      The id of the export session

Related:

DBA_EXP_VERSION