Research project: StarStream (2016 onwards)
From 2016 onwards, Professor Leighton continued his 30 year of research and development into processing surfaces using water carrying sound and microbubbles, specifically advancing beyond the benchtop StarStream device to by inventing more capable systems to clean using cold water without additives. In 2018 the company Sloan Water Technology Ltd. (of which he is Director and Inventor-in-Chief) bought his patents from the University of Southampton to continue R&D and expand towards technology that would make StarStream obsolete.