Thomas Parry Jones OBE (27 March 1935 – 11 January 2013) was a Welsh scientist, inventor and entrepreneur, who was responsible for developing and marketing the first handheld electronic breathalyser, winning the Queen's Award for Technological Achievement in 1980 for the work.

[3] In 1967, Parry Jones established Lion Laboratories in Cardiff, with his colleague and managing director William "Bill" Ducie, an electrical engineer.

[4] In 1969, Lion Laboratories' version of the breathalyser, known as the Alcolyser, and incorporating crystal-filled tubes that changed colour (yellow to green) above a certain level of alcohol in the breath.

[3] Parry Jones continued to work at the University at this time, until in 1975 when he asked for a two-year leave of absence in order to investigate the commercial possibilities of the device.

[5] Lion Laboratories won the Queen's Award for Technological Achievement in 1980 for development of the first hand-held electronic breath-alcohol instrument (Alcolmeter), and this device was later marketed worldwide.

[3] In 1983 breath-alcohol analysis was accepted for evidential purposes and Lion Intoximeter 3000 was the first instrument approved by the British Home Office for testing drunken drivers.

In 1991, Lion Laboratories was sold to the American company MPD, Inc.[3] Parry Jones later said, "I found inventing the device the easy part.

[5] In about 2002, he established the Dr Tom Parry Jones Endowment Fund, at Bangor University, to encourage young people to develop careers and entrepreneurship in science and technology.

[2] Following his death, Bangor University released a statement which read "Dr Tom Parry Jones' worldwide reputation and genuine enthusiasm for developing Wales' future economy through ensuring that young people are well supported in developing their scientific knowledge and entrepreneurial skills – made him a treasured alumnus of Bangor University.