Complex sentence: James Bert Garner (September 2,1870--November 28,1960) A chemical engineer and professor at the Mellon Institute of Industrial Research from 1914 until his retirement in 1957, credited as the inventor of the gas mask in 1915.
Split into simpler sentences: James Bert Garner (September 2,1870--November 28,1960) was a chemical engineer and professor at the Mellon Institute of Industrial Research from 1914 until his retirement in 1957. He is credited as the inventor of the gas mask in 1915.