Cannabis has become a become a big (legal) business in recent years. This weekend marked the death of Raphael Mechoulam at the age of 92. An emeritus professor at Hebrew University, he was one of the fathers of research into cannabis. He began his work in this area in the 1960s and published some of the seminal papers on the cannabinoids found in cannabis. Pubmed indicates that in just the last 21 years - well into retirement, and a period that excludes the first 40 or more years of his research activity - he had 178 publications. His work was cited or listed as prior art in numerous patents and patent applications, and he himself is listed as an inventor on dozens of patents and patent applications, including two US patent applications published within the last year. יהי זכרו ברוך