Simultaneous protection allowed?
No; to the extent that it protects the same invention, the national patent ceases to have effect from the date on which
(a) the period for filing the notice of opposition to the European patent expires without such notice being filed, or
(b) the opposition proceedings are finally closed, the European patent having been maintained.
Simultaneous protection for utility models is allowed.
Art. 127 PA
Territorial field of application
Territory of the Republic of Croatia