Dr. Mark Benden, associate professor and department head of environmental and occupational health at the Texas A&M School of Public Health, received his 21st patent and will receive his 22nd in June. With a career spanning 25 years in occupational safety and ergonomics, he has produced multiple processes, tools and devices to ease injury and illness risk. Sales of items with his patent numbers have totaled more than $500 million, and the expected lifetime economic impact of his designs exceeds $2 billion.