Annuities and renewals kipaIn order to keep patent applications and granted patents alive, annual fees and renewal fees have to be paid regularly to the patent authority by which the applications or patents are handled.  For an issued U.S. patent, patent maintenance fees must be paid 3.5, 7.5, and 11.5 years to keep the patent in force.

KIPA attends to payment of renewal fees, annual fees, and maintenance fees throughout the world.