Gun Patents Set 35-Year High in U.S. in Quest for Better Shooter

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Gunmakers such as Smith & Wesson Holding Corp. and Sturm Ruger & Co. are boosting firearms sales by building weapons that are more accurate and easier to use, with gun-related U.S. patents at a 35-year high.

Demand is growing as more states allow people to carry concealed weapons and lawmakers discuss limiting sales after mass shootings at public venues like schools and movie theaters. Ownership is rising among women and the elderly.