Apple is planning to add Samsung Electronics’ Galaxy S4 smartphone to its line-up of 22 allegedly patent-infringing products, in the long running patent battle with the South Korean firm.

The disclosure has come out in a filing with the US district court northern district of California San Jose division.

Apple said in the court filing that based on its analysis of the Galaxy S4, the company has concluded that it is an infringing device and accordingly intends to move for leave to add the Galaxy S4 as an infringing product.

The company added that it will have to eliminate one of the accused products named in its list, so that it will continue to accuse only 22 products of infringement at this stage of the litigation.

Some of the Samsung products included in the list are Galaxy Note, Galaxy Note 10.1 and Galaxy Note II hybrid phone-tablets, Galaxy SII and SIII phones and three Galaxy series tablet computers.

The latest lawsuit is the second infringement lawsuit between both the firms filed in the same court.

It follows a case in which a nine-member jury panel awarded Apple $1.05bn in August 2012, after finding Samsung infringed six of seven iPhone maker’s patents for mobile devices.

However, earlier this year US District Judge, Lucy Koh, has cut about $450.5m from the $1.05bn in damages that Apple was awarded.

Samsung has also submitted a list of 22 Apple products, which it alleges violate its patents, including five models of Apple’s iPhone, five models of iPad, three models of iPod music players, MacBook Pro and MacBook Air models.