Complex sentence: Iwo Cyprian Pogonowski (3 September 1921--21 July 2016) was a Polish-born writer and inventor with 50 patents to his credit; a civil and industrial engineer by profession, educated in Poland, Belgium, and the United States.
Split into simpler sentences: Iwo Cyprian Pogonowski (3 September 1921--21 July 2016) was a Polish-born writer and inventor with 50 patents to his credit. He was a civil and industrial engineer by profession, educated in Poland, Belgium, and the United States.