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Dow Chemical wins patent for insect-resistant crops

Dow Chemical wins patent for insect-resistant crops

Midland, Mich. (Bloomberg) -- Dow Chemical Co., the largest U.S. chemical maker, won a U.S. patent for insect- resistant plants and said it plans to seek licensing agreements from rivals selling products that use the same technology.

The U.S. Patent Office granted "broad and exclusive" patent rights for plants containing genes from the bacteria Bt, or Bacillus thuringiensis, Dow said Tuesday in a statement. Dow AgroSciences sells Bt-modified corn co-developed with DuPont Co.'s Pioneer unit under the Herculex brand and Bt-engineered cotton under the WideStrike name.

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