The design of a rival company’s lacrosse stick head has infringed the patent of Baltimore-based STX LLC, a federal judge ruled Monday. But U.S. District Judge Richard D. Bennett denied STX’s request for an injunction preventing the defendant, Minnesota-based Epoch ...

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Neuralstem Inc. can thank the discovery of a 1991 agreement among three inventors for a federal judge’s dismissal Wednesday of a multimillion-dollar claim that the Germantown-based biotech company infringed a California firm’s patent on a spinal treatment.

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Two of the biggest U.S. agribusiness companies say they have agreed to settle their patent-infringement lawsuits against each other that had been pending in a St. Louis federal court.

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The Supreme Court is leaping into a tangled web of litigation over a Spider-Man toy and its inventor's quest to keep collecting royalties even after his patent expired.

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The Supreme Court is taking up a patent infringement dispute between computer networking giant Cisco Systems Inc. and rival Commil USA LLC.

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Bose Corp. filed a patent-infringement action seeking to block U.S. imports of noise-canceling headphones made by Beats Electronics LLC, the company being bought by Apple Inc.

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The U.S. Supreme Court has handed down a pair of decisions that could make it more difficult to bring patent infringement claims in some circumstances, which many observers expect to hamper so-called patent trolls.

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The losers of patent-infringement cases who engage in “unreasonable” litigation conduct should pay the winners’ legal fees, the U.S. Supreme Court said Tuesday in a victory for companies including Google Inc. and Apple Inc.

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The Rapid Engagement Precision Rifle leads a double life: It can be quickly converted from an assault rifle to a sniper rifle, according to the website of its Eastern Shore-based manufacturer. Not surprisingly, it also has a double dose of litigation over its origins. In the latest round, Cambridge-based LWRC International LLC is suing a Texas competitor for patent infringement.

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A Baltimore-based hybrid technology company is suing Ford Motor Co., claiming the automaker co-opted its patented innovations for several of its hybrid and plug-in vehicles.

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