Oxford has been a centre of learning and teaching for a thousand years. Today the University of Oxford is renowned throughout the world for the quality of its teaching and research across a broad range of subjects. Over 20,000 students, including almost 7,000 postgraduates, study in its collegiate system whilst supervised by academics from around the world who are dedicated to being at the forefront of their field. The University earns over £340 million a year in research funding and makes almost one patent application a week. Since 1988 its technology transfer company, Isis Innovation, has created over 60 companies to exploit inventions made by researchers.