HELSINKI (Reuters) — Nokia , the world’s top handset maker, broadened its patent battle against Apple on Friday to include the iPad, deepening the legal fight between the two smartphone rivals.

The firms have turned to the courts in the last year as Nokia battles Apple, which only entered the cellphone business in 2007 but has taken a sizeable share of the fat-margined, fast-growing smartphone market.

The Finnish firm, on the other hand, has shed market share in smartphones along with margins and stunned investors last month by delaying its new software upgrade for phones, seen as key in its struggle with Apple.

This in addition to the report that Nokia is branching out to new fields – they are all signs of a company grasping at straws.