RONALD J. MATEJ, age 92; of Parma Heights, passed away Sunday, December 28, 2025. Beloved husband of Alice (nee Prutton) for 70 years; loving father of Jonathan, Daniel (Gloria) and Matt; grandfather of Ronald and Andrew; son of the late John and Anne. Ron was a U.S. Air Force Veteran and was the president of Prutton Corporation. He was known internationally as a Leader of Planetary Machine Design, where he held 19 patents. After Prutton Corporation was sold to Litton, he was a consultant until his retirement. Ron also volunteered and was very involved in The Boys Scouts of America. He was loved and will be greatly missed. Graveside Service at Ohio Western Reserve National Cemetery, 10175 Rawiga Rd., Seville, Wednesday, January 7, 2026 at 2:15 p.m.