Hassan Kamel Al-Sabbeh
Statue of Hassan Kamel Al-Sabbah in Nabatieh.
Born	August 1894 (1894) Nabatieh, Lebanon
Died	31 March 1935(1935-03-31) (aged 40) Lewis, United States
Occupation(s)	electrical and electronics research engineer, mathematician and inventor.

Hassan Kamel Al-Sabbah (Arabic: حسن كامل الصباح; August 16, 1894 – March 31, 1935) was a Lebanese electrical and electronics research engineer, mathematician and inventor. He was born in Nabatieh in present-day Lebanon.

He studied at the American University of Beirut. In 1916, he was conscripted into the Ottoman army,^[1] and worked as a telegraph operator. He later taught mathematics in Damascus, Syria, and at the American University of Beirut.^{[citation needed]}

In 1921, he travelled to the United States and for a short time studied at the Massachusetts Institute of Technology before joining the University of Illinois in 1923. He joined the vacuum tube department of the Engineering Laboratory of the General Electric Company at Schenectady, New York, in 1923, where he had engaged in mathematical and experimental research, principally on rectifiers and inverters. He received 43 patents covering his work. Among the patents were reported innovations in television transmission.^[2][3][4][5]

He died in an automobile accident at Lewis near Elizabethtown, New York. His body was buried at the Nabatieh Cemetery in his hometown Nabatieh, Lebanon.^[6]

He was the nephew of linguist and writer Sheikh Ahmad Rida.^{[citation needed]}

Al-Sabbah made significant contributions that laid the foundation to improve the reliability of inventions in various industries that are still utilized to this day. Some of his most notable contributions are in the following fields:

In a world that was becoming increasingly dependent on global connectivity, his development of rectifiers and inverters helped enhance the reliability of long-distance communication networks. This significantly improved the quality of early telegraphy, telephony, and radio transmission systems and laid the foundation for more stable and efficient communication infrastructure.

The rectifiers and inverters he designed for high-voltage power transmission reduced power loss over long distances, which significantly advanced power grid technologies and expanded accessibility to reliable electricity in both urban and rural areas.

Efficient transmission and conversion of energy is key for modern energy grids and renewable energy sources, for which these designs are still utilized to this day.

Al-Sabbah contributed to the evolution of televisions, radar systems, and early computing monitors by advancing cathode ray tube (CRT) technology. CRT technology was essential for transmitting and displaying electronic images and dominated the industry of early TVs and displays until the eventual invention of LCDs and LEDs.