Inventions and Patents
There are currently about four million patents in force worldwide, and every year 700,000 new patents are applied for. Although the research required is time-consuming and the registration expensive, the European Patent Office alone receives over 150,000 patent applications each year. More than half of these applications are granted a patent. Only a few patented inventions become an economic success, however.
Between 1967 and 1976, Jacqueline Urbach was issued with no less than six registered patents connected to the development of contact lenses. Two of her inventions were a huge economic success and had a major and lasting effect on the development of contact lenses.