Big tech firms have already disrupted retail, media, finance and nearly every other industry. Up next? Life sciences, according to Ernst & Young . Between 2013 and 2017 Alphabet GOOGL -2.4%, Microsoft MSFT -2.59% and Apple AAPL -0.8% filed over 300 patents tied to health care, according to a new report published by the Ernst & Young Life Sciences division released Tuesday. Alphabet filed 186 patents, Microsoft filed 73 and Apple filed 54 in that time span, representing a 38% increase in the number of health-related patents filed by these three companies every two years.

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