Inventors are often perceived as eccentric, original thinkers inspired by dreams, but many of the products at the 38th Exhibition of Inventions in Geneva showed skill, pragmatism and good business sense. Roland, left, and Raymond de la Celle from France with their orthopaedic equipment and life assistant for dogs who have had spinal surgery or who are permanently disabled. The equipment allows stimulating movements on their hind legs allowing them to recover some mobility. On average, about 45 percent of the inventions presented during the 38-year old fair have been put on sale abroad through licensing contracts. Last year those contracts were wrth a total of 29.6 million euros. Belgium's Alexis Babusiaux with his one-handed bottle opener. French engineer Janick Simeray displays his electromagnetic plinth that can levitate small objects like this ball. Simeray has patented 120 inventions and reinvests his profits in research.