Start-ups fight back as patent wars intensify

    SAN FRANCISCO (Reuters) - The patent wars that have embroiled many of the world's technology giants in recent years are spreading to a new set of combatants: start-up companies and their venture-capital backers.

    A group familiar to many larger technology companies is instigating the battles: non-performing entities, or NPEs, who acquire patents or serve as agents for inventors. Paradoxically, they often represent start-up friendly institutions such as universities.

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(REUTERS)