Professor Yull Brown, born Ilia Valkov

Professor Yull Brown, born Ilia Valkov on the 16th of April 1922, in a small village near Varna, Bulgaria, devoted his life to exploring what he saw as the hidden potential of water.

Driven by both adversity and determination, he emigrated to Australia and adopted the name “Yull Brown.” There, he developed and patented what came to be known as Brown’s Gas — a specialized form of oxyhydrogen produced by electrolyzing water into hydrogen and oxygen in a precise 2:1 ratio.

Brown’s ambition was bold: he aspired not merely to liberate hydrogen from water, but to do so in a way that would allow the gas mixture to be safely stored, transported, and used as a clean energy source. In his vision, Brown’s Gas could serve for welding, combustion, or even as a step toward “water as fuel,” converting back into pure water after release of energy — a closed-cycle system.

While mainstream science remains sceptical of some of his more ambitious claims, Brown’s inventions sparked interest in alternative energy research and drew attention to the possibilities and limits of water-splitting techniques.

• Hydroxsystems – Yull Brown

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