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John David Petty
John David Petty is a retired analytical chemist/inventor; founder and previous owner of Ionode Pty Ltd, a manufacturer of electrochemical sensors. He is the holder of six US paten...lihat lebih banyakJohn David Petty is a retired analytical chemist/inventor; founder and previous owner of Ionode Pty Ltd, a manufacturer of electrochemical sensors. He is the holder of six US patents with counterparts in other countries and has a number of papers in leading analytical chemistry journals relating to his inventions, co-authored with academic collaborators and industrial sponsors. He is widely read, and his work has been influenced by many authors. John has no previously published novels.lihat lebih sedikit