One of the world’s biggest social networking website, Facebook, has shored up its legal defences by buying 750 technology patents from IBM, according to reports.

It is believed the latest purchase from IBM which includes various technology patents – including software and networking – will significantly increase Facebook’s legal defence, against costly legal battles.

Facebook are looking to bolster their legal defence, following a wide-ranging patent infringement claim which was filed this month by Yahoo! and against future lawsuits which Facebook admit they expect to face.

Traditionally, companies targeted with a patent claim will look towards a countersuit using its own patents; however in this instance Yahoo! was said to possess more patents than Facebook, before the IBM transaction.

Yahoo! is claiming that Facebook is infringing its patents on online advertising, privacy controls, news feeds and messaging services.