By Mark Prigg PUBLISHED: 04:15 EST, 15 August 2012 | UPDATED: 04:49 EST, 15 August 2012 The shocking hours worked by engineers at Samsung while creating its mobile phones has been revealed. An engineer who helped develop the Galaxy S phone admitted to only sleeping for 2-3 hours a night while working on the handset. The revelations came as the Korean firm's court battle with Apple intensified. Samsung's Galaxy S handset. Engineers today admitted they only slept for two hours a night while developing it A Samsung Electronics Co Ltd expert witness testified on Tuesday that Apple Inc's iPhone and iPad violate three of Samsung's patents, as the South Korean electronics company went on offense in the third week of a high stakes trial.
@highlight
Firm accuses Apple of infringing patents for emailing photos
@highlight
Engineers at Samsung admit to working 22 hour days
He was one of Samsung's first witnesses after a parade of Apple experts said @placeholder phones and tablets violated Apple's patents.