Patent applications that have been filed all over the world range from special bow and hull forms to ice saws that are pushed in front of the ship, and to continuous blasting of the ice-fields ahead of the ship.
Izicelo ezicacileyo ebezikugcina kulo lonke eli zireyinya ukusuka kwisaphetha esingaqhelekanga nakuhlobo lweziqu zenqanawa ukuya kumaso omkhenkce la atyhalelwe ngaphantsi kwenqanawa, nakudubulo oluqhubekayo lomkhenkce wamasimi kuqala kunenqanawa.