Regulators Take Look at Patent Firms’ Impact

U.S. antitrust authorities are examining whether specialized patent-holding firms—or “trolls” to their detractors—are disrupting competition in high-tech markets, opening a new front in a long-standing Silicon Valley battle.

“There’s a possibility of competitive harm here,” said Joseph Wayland, who served as the Justice Department’s acting antitrust chief until last week, when he stepped down to return to private practice. Mr. Wayland said officials are devoting “huge energy, particularly at a senior level” to this and other antitrust issues surrounding patents.

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