Superficially, wiper blades appear the same today as they did when the first electrically-powered windscreen wiper system appeared in 1926. However, technical advances by the major wiper manufacturers since then have centred on improving two performance characteristics: silence and wiping quality. While the principles of the humble wiper system have remained the same for the past 80 years, a host of innovative products are making continuous improvements. Matthew Beecham reports.