From pencil sharpeners to a $539m lawsuit: how big tech weaponised patents

It was designed to make sharpening a pencil feel as thrilling as flying a jet. A gleaming chrome teardrop, tapered to a point and adorned with a bullet-like handle, Raymond Loewy’s aerodynamic tail-fin pencil sharpener brought the glamour of the machine age to the humble office desk. As the godfather...